diff --git a/app/src/main/kotlin/com/wisp/app/MainActivity.kt b/app/src/main/kotlin/com/wisp/app/MainActivity.kt
index 6db1d98..ae347a1 100644
--- a/app/src/main/kotlin/com/wisp/app/MainActivity.kt
+++ b/app/src/main/kotlin/com/wisp/app/MainActivity.kt
@@ -18,6 +18,7 @@ import androidx.compose.runtime.CompositionLocalProvider
 import androidx.compose.runtime.remember
 import androidx.compose.ui.graphics.Color
 import com.wisp.app.repo.InterfacePreferences
+import com.wisp.app.ui.component.NsecPasteGuard
 import com.wisp.app.repo.LocaleRepository
 import com.wisp.app.ui.component.LocalMediaSettings
 import com.wisp.app.ui.component.MediaSettings
@@ -37,6 +38,7 @@ class MainActivity : FragmentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         installSplashScreen()
         super.onCreate(savedInstanceState)
+        NsecPasteGuard.setActivity(this)
         enableEdgeToEdge()
         deepLinkUri.value = intent?.data?.toString()
         setContent {
diff --git a/app/src/main/kotlin/com/wisp/app/Navigation.kt b/app/src/main/kotlin/com/wisp/app/Navigation.kt
index 93a919f..356a303 100644
--- a/app/src/main/kotlin/com/wisp/app/Navigation.kt
+++ b/app/src/main/kotlin/com/wisp/app/Navigation.kt
@@ -94,6 +94,7 @@ import com.wisp.app.ui.component.FloatingVideoPlayer
 import com.wisp.app.ui.component.PipController
 import com.wisp.app.ui.component.FullScreenVideoPlayer
 import com.wisp.app.ui.component.FullScreenVideoState
+import com.wisp.app.ui.component.NsecPasteWarningOverlay
 import com.wisp.app.ui.screen.OnboardingSuggestionsScreen
 import com.wisp.app.ui.screen.OnboardingTopicsScreen
 import com.wisp.app.ui.screen.OnboardingFirstPostScreen
@@ -3427,6 +3428,7 @@ fun WispNavHost(
             .align(Alignment.BottomCenter)
             .padding(bottom = 16.dp)
     )
+    NsecPasteWarningOverlay()
     } // CompositionLocalProvider
     } // Box
 
diff --git a/app/src/main/kotlin/com/wisp/app/nostr/Event.kt b/app/src/main/kotlin/com/wisp/app/nostr/Event.kt
index edeec4f..d060da5 100644
--- a/app/src/main/kotlin/com/wisp/app/nostr/Event.kt
+++ b/app/src/main/kotlin/com/wisp/app/nostr/Event.kt
@@ -194,3 +194,6 @@ fun String.hexToByteArray(): ByteArray {
         ((Character.digit(this[i * 2], 16) shl 4) + Character.digit(this[i * 2 + 1], 16)).toByte()
     }
 }
+
+/** Encodes a 32-byte hex pubkey as a bech32 npub string. */
+fun String.toNpub(): String = Nip19.npubEncode(hexToByteArray())
diff --git a/app/src/main/kotlin/com/wisp/app/nostr/ProfileData.kt b/app/src/main/kotlin/com/wisp/app/nostr/ProfileData.kt
index 3842d5a..c021227 100644
--- a/app/src/main/kotlin/com/wisp/app/nostr/ProfileData.kt
+++ b/app/src/main/kotlin/com/wisp/app/nostr/ProfileData.kt
@@ -22,7 +22,7 @@ data class ProfileData(
     val displayString: String
         get() = displayName.takeUnlessBlank()
             ?: name.takeUnlessBlank()
-            ?: "${pubkey.take(8)}...${pubkey.takeLast(4)}"
+            ?: pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
 
     companion object {
         private val json = Json { ignoreUnknownKeys = true }
diff --git a/app/src/main/kotlin/com/wisp/app/ui/component/AddToListDialog.kt b/app/src/main/kotlin/com/wisp/app/ui/component/AddToListDialog.kt
index dea2506..e2fa720 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/component/AddToListDialog.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/component/AddToListDialog.kt
@@ -103,7 +103,7 @@ fun AddNoteToListDialog(
                 ) {
                     OutlinedTextField(
                         value = newListName,
-                        onValueChange = { newListName = it },
+                        onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(newListName, new)) newListName = new },
                         placeholder = { Text("New list name") },
                         singleLine = true,
                         modifier = Modifier.weight(1f)
diff --git a/app/src/main/kotlin/com/wisp/app/ui/component/DmBubble.kt b/app/src/main/kotlin/com/wisp/app/ui/component/DmBubble.kt
index ba298af..f35b9a8 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/component/DmBubble.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/component/DmBubble.kt
@@ -85,6 +85,7 @@ import androidx.compose.foundation.Image
 import androidx.compose.ui.graphics.asImageBitmap
 import com.wisp.app.R
 import com.wisp.app.nostr.DmMessage
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.ui.screen.GroupChatHorizontalChipStrip
 import com.wisp.app.nostr.DmReaction
 import com.wisp.app.nostr.EncryptedMedia
@@ -131,7 +132,7 @@ fun DmBubble(
     val density = LocalDensity.current
     val swipeThresholdPx = with(density) { 72.dp.toPx() }
     val senderProfile = remember(message.senderPubkey) { eventRepo?.getProfileData(message.senderPubkey) }
-    val senderName = senderProfile?.displayString ?: (message.senderPubkey.take(8) + "…")
+    val senderName = senderProfile?.displayString ?: message.senderPubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
 
     val animatedSwipe by animateFloatAsState(
         targetValue = swipeOffsetPx,
@@ -539,7 +540,7 @@ private fun QuotedDmPreview(
 ) {
     val senderName = remember(message.senderPubkey) {
         eventRepo?.getProfileData(message.senderPubkey)?.displayString
-            ?: message.senderPubkey.take(8) + "…"
+            ?: message.senderPubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
     }
     val accentColor = if (parentIsSent) MaterialTheme.colorScheme.onPrimary.copy(alpha = 0.5f)
     else MaterialTheme.colorScheme.primary.copy(alpha = 0.6f)
diff --git a/app/src/main/kotlin/com/wisp/app/ui/component/GalleryCard.kt b/app/src/main/kotlin/com/wisp/app/ui/component/GalleryCard.kt
index 4b9ef15..753fe5e 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/component/GalleryCard.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/component/GalleryCard.kt
@@ -83,6 +83,7 @@ import coil3.compose.AsyncImage
 import androidx.compose.material3.CircularProgressIndicator
 import com.wisp.app.R
 import com.wisp.app.nostr.Nip13
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.nostr.Nip19
 import com.wisp.app.nostr.Nip30
 import com.wisp.app.nostr.Nip68
@@ -229,7 +230,7 @@ fun GalleryCard(
 
     val displayName = remember(event.pubkey, profile?.displayString) {
         profile?.displayString
-            ?: event.pubkey.take(8) + "..." + event.pubkey.takeLast(4)
+            ?: event.pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
     }
     val timestamp = remember(event.created_at) { formatGalleryTimestamp(event.created_at) }
 
@@ -288,7 +289,7 @@ fun GalleryCard(
                 // Label text
                 val labelText = if (repostPubkeys.size == 1) {
                     val name = eventRepo?.getProfileData(repostPubkeys.first())?.displayString
-                        ?: (repostPubkeys.first().take(8) + "...")
+                        ?: repostPubkeys.first().toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
                     "$name reposted"
                 } else if (overflow > 0) {
                     "and $overflow others reposted"
@@ -605,7 +606,7 @@ fun GalleryCard(
             if (topZap != null) {
                 val zapperProfile = eventRepo?.getProfileData(topZap.pubkey)
                 val zapperName = zapperProfile?.displayString
-                    ?: (topZap.pubkey.take(8) + "...")
+                    ?: topZap.pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
                 TopZapperBanner(
                     avatarUrl = zapperProfile?.picture,
                     name = zapperName,
diff --git a/app/src/main/kotlin/com/wisp/app/ui/component/NsecPasteGuard.kt b/app/src/main/kotlin/com/wisp/app/ui/component/NsecPasteGuard.kt
new file mode 100644
index 0000000..a2e5a27
--- /dev/null
+++ b/app/src/main/kotlin/com/wisp/app/ui/component/NsecPasteGuard.kt
@@ -0,0 +1,200 @@
+package com.wisp.app.ui.component
+
+import android.app.Activity
+import android.view.WindowManager
+import android.view.inputmethod.InputMethodManager
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.animation.slideInVertically
+import androidx.compose.animation.slideOutVertically
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.Warning
+import androidx.compose.material3.Icon
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.SideEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.runtime.snapshotFlow
+import kotlinx.coroutines.flow.collectLatest
+import kotlinx.coroutines.flow.filter
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalSoftwareKeyboardController
+import androidx.compose.ui.platform.LocalView
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.compose.foundation.text.input.InputTransformation
+import androidx.compose.foundation.text.input.TextFieldBuffer
+import androidx.compose.ui.window.Dialog
+import androidx.compose.ui.window.DialogProperties
+import androidx.compose.ui.window.DialogWindowProvider
+import kotlinx.coroutines.delay
+import java.lang.ref.WeakReference
+
+private val NSEC_REGEX = Regex("nsec1[a-z0-9]{58}")
+
+object NsecPasteGuard {
+    /**
+     * Set to true while a screen that intentionally accepts nsec input (e.g. login/import)
+     * is visible, so key entry continues to work normally.
+     */
+    var nsecPasteAllowed: Boolean = false
+
+    var warningVisible by mutableStateOf(false)
+        private set
+
+    private var activityRef: WeakReference<Activity>? = null
+
+    fun setActivity(activity: Activity) {
+        activityRef = WeakReference(activity)
+    }
+
+    fun containsNsec(text: String): Boolean = NSEC_REGEX.containsMatchIn(text)
+
+    /**
+     * Returns true if the paste was blocked (caller should NOT apply the new value).
+     * Only triggers when an nsec appears in newText that wasn't in currentText.
+     */
+    fun blockIfNsec(currentText: String, newText: String): Boolean {
+        if (nsecPasteAllowed) return false
+        if (containsNsec(newText) && !containsNsec(currentText)) {
+            warningVisible = true
+            hideKeyboard()
+            return true
+        }
+        return false
+    }
+
+    fun dismissWarning() {
+        warningVisible = false
+    }
+
+    fun hideKeyboard() {
+        val activity = activityRef?.get() ?: return
+        val imm = activity.getSystemService(Activity.INPUT_METHOD_SERVICE) as InputMethodManager
+        // Try the currently focused window first (works when a dialog has focus),
+        // fall back to the decor view token.
+        val token = activity.currentFocus?.windowToken
+            ?: activity.window.decorView.windowToken
+        imm.hideSoftInputFromWindow(token, 0)
+    }
+
+    /** InputTransformation for BasicTextField(state = TextFieldState) fields. */
+    val inputTransformation = InputTransformation {
+        if (!nsecPasteAllowed && containsNsec(asCharSequence().toString())) {
+            revertAllChanges()
+            warningVisible = true
+            hideKeyboard()
+        }
+    }
+}
+
+/**
+ * Red warning pill that floats above ALL content including dialogs, by rendering in a
+ * non-touchable, non-focusable Dialog window. Place once at the root of the composition.
+ */
+@Composable
+fun NsecPasteWarningOverlay(modifier: Modifier = Modifier) {
+    var popupOpen by remember { mutableStateOf(false) }
+    var showPill by remember { mutableStateOf(false) }
+
+    // Use snapshotFlow + collectLatest so that dismissWarning() setting warningVisible=false
+    // doesn't cancel this coroutine (it's filtered out), allowing popupOpen = false to run.
+    LaunchedEffect(Unit) {
+        snapshotFlow { NsecPasteGuard.warningVisible }
+            .filter { it }
+            .collectLatest {
+                popupOpen = true
+                showPill = true
+                delay(3500)
+                showPill = false
+                NsecPasteGuard.dismissWarning()
+                delay(250)
+                popupOpen = false
+            }
+    }
+
+    if (popupOpen) {
+        Dialog(
+            onDismissRequest = {},
+            properties = DialogProperties(
+                dismissOnBackPress = false,
+                dismissOnClickOutside = false,
+                usePlatformDefaultWidth = false
+            )
+        ) {
+            // Inside a Compose Dialog, LocalView.current IS the DialogWindowProvider.
+            val dialogView = LocalView.current
+            val keyboardController = LocalSoftwareKeyboardController.current
+
+            SideEffect {
+                val window = (dialogView as? DialogWindowProvider)?.window
+                window?.addFlags(
+                    WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE or
+                    WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
+                )
+                window?.clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND)
+            }
+
+            // Hide keyboard from within the overlay window's context — this uses the
+            // applicationWindowToken which works regardless of which window has IME focus.
+            LaunchedEffect(Unit) {
+                keyboardController?.hide()
+            }
+
+            Box(
+                modifier = Modifier.fillMaxSize(),
+                contentAlignment = Alignment.BottomCenter
+            ) {
+                AnimatedVisibility(
+                    visible = showPill,
+                    enter = slideInVertically(initialOffsetY = { it / 2 }) + fadeIn(),
+                    exit = slideOutVertically(targetOffsetY = { it / 2 }) + fadeOut()
+                ) {
+                    Surface(
+                        color = Color(0xFFB71C1C),
+                        shape = RoundedCornerShape(24.dp),
+                        modifier = Modifier
+                            .padding(horizontal = 20.dp)
+                            // Enough clearance for nav bar + compose toolbar / bottom bars
+                            .padding(bottom = 100.dp)
+                            .fillMaxWidth()
+                    ) {
+                        Row(
+                            verticalAlignment = Alignment.CenterVertically,
+                            modifier = Modifier.padding(horizontal = 18.dp, vertical = 10.dp)
+                        ) {
+                            Icon(
+                                imageVector = Icons.Outlined.Warning,
+                                contentDescription = null,
+                                tint = Color.White,
+                                modifier = Modifier.padding(end = 8.dp)
+                            )
+                            Text(
+                                text = "Paste blocked — your nsec is your private key and must never be shared.",
+                                color = Color.White,
+                                fontSize = 13.sp,
+                                fontWeight = FontWeight.SemiBold,
+                                lineHeight = 18.sp
+                            )
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
diff --git a/app/src/main/kotlin/com/wisp/app/ui/component/PostCard.kt b/app/src/main/kotlin/com/wisp/app/ui/component/PostCard.kt
index 335dbb5..7dd9912 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/component/PostCard.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/component/PostCard.kt
@@ -69,6 +69,7 @@ import androidx.compose.material.icons.outlined.Warning
 import androidx.compose.foundation.layout.wrapContentHeight
 import androidx.compose.material3.Surface
 import com.wisp.app.nostr.Nip05
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.nostr.Nip10
 import com.wisp.app.nostr.Nip13
 import com.wisp.app.nostr.Nip19
@@ -177,7 +178,7 @@ fun PostCard(
 ) {
     val displayName = remember(event.pubkey, profile?.displayString) {
         profile?.displayString
-            ?: event.pubkey.take(8) + "..." + event.pubkey.takeLast(4)
+            ?: event.pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
     }
 
     val timestamp = remember(event.created_at) {
@@ -212,7 +213,7 @@ fun PostCard(
     val profileVersion by eventRepo?.profileVersion?.collectAsState() ?: remember { mutableIntStateOf(0) }
     val replyToName = remember(replyToPubkey, profileVersion) {
         replyToPubkey?.let { pk ->
-            eventRepo?.getProfileData(pk)?.displayString ?: (pk.take(8) + "...")
+            eventRepo?.getProfileData(pk)?.displayString ?: pk.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
         }
     }
 
@@ -269,7 +270,7 @@ fun PostCard(
                 // Label text
                 val labelText = if (repostPubkeys.size == 1) {
                     val name = eventRepo?.getProfileData(repostPubkeys.first())?.displayString
-                        ?: (repostPubkeys.first().take(8) + "...")
+                        ?: repostPubkeys.first().toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
                     "$name reposted"
                 } else if (overflow > 0) {
                     "and $overflow others reposted"
@@ -774,7 +775,7 @@ fun PostCard(
                 if (topZap != null) {
                     val zapperProfile = eventRepo?.getProfileData(topZap.pubkey)
                     val zapperName = zapperProfile?.displayString
-                        ?: (topZap.pubkey.take(8) + "...")
+                        ?: topZap.pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
                     TopZapperBanner(
                         avatarUrl = zapperProfile?.picture,
                         name = zapperName,
diff --git a/app/src/main/kotlin/com/wisp/app/ui/component/ReactionDetailsSection.kt b/app/src/main/kotlin/com/wisp/app/ui/component/ReactionDetailsSection.kt
index 6153225..e26896f 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/component/ReactionDetailsSection.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/component/ReactionDetailsSection.kt
@@ -47,6 +47,7 @@ import androidx.compose.ui.platform.LocalContext
 import com.wisp.app.R
 import com.wisp.app.ui.util.AmountFormatter
 import com.wisp.app.nostr.NostrEvent
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.nostr.ProfileData
 import com.wisp.app.repo.EventRepository
 import com.wisp.app.repo.ZapDetail
@@ -156,7 +157,7 @@ fun ZapRow(
         )
         Spacer(Modifier.width(8.dp))
         Text(
-            text = message.ifBlank { profile?.displayString ?: (pubkey.take(8) + "...") },
+            text = message.ifBlank { profile?.displayString ?: pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" } },
             style = MaterialTheme.typography.bodySmall,
             color = MaterialTheme.colorScheme.onSurface,
             maxLines = 1,
diff --git a/app/src/main/kotlin/com/wisp/app/ui/component/RichContent.kt b/app/src/main/kotlin/com/wisp/app/ui/component/RichContent.kt
index 978a9e1..4d44a95 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/component/RichContent.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/component/RichContent.kt
@@ -106,6 +106,7 @@ import androidx.compose.material3.ButtonDefaults
 import androidx.compose.material3.TextButton
 import com.wisp.app.R
 import com.wisp.app.nostr.Bolt11
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.nostr.Nip19
 import com.wisp.app.nostr.Nip30
 import com.wisp.app.nostr.toHex
@@ -763,7 +764,7 @@ fun RichContent(
                     for (pubkey in profilePubkeys) {
                         val profile = eventRepo?.getProfileData(pubkey)
                         names[pubkey] = profile?.displayString
-                            ?: "${pubkey.take(8)}...${pubkey.takeLast(4)}"
+                            ?: pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
                     }
                     names
                 }
@@ -839,7 +840,7 @@ fun RichContent(
                             }
                             is ContentSegment.NostrProfileSegment -> {
                                 val pubkey = seg.pubkey
-                                val displayName = profileNames[seg.pubkey] ?: seg.pubkey.take(8)
+                                val displayName = profileNames[seg.pubkey] ?: seg.pubkey.toNpub().take(12)
                                 withLink(
                                     LinkAnnotation.Clickable("profile") {
                                         onProfileClick?.invoke(pubkey)
@@ -1259,7 +1260,7 @@ fun QuotedNote(
                     Column(modifier = Modifier.weight(1f)) {
                         Text(
                             text = profile?.displayString
-                                ?: event.pubkey.take(8) + "..." + event.pubkey.takeLast(4),
+                                ?: event.pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" },
                             style = MaterialTheme.typography.titleSmall,
                             color = MaterialTheme.colorScheme.onSurface,
                             maxLines = 1,
@@ -1507,7 +1508,7 @@ private fun ArticleCard(
                         ProfilePicture(url = profile?.picture, size = 20)
                         Spacer(Modifier.width(6.dp))
                         val displayName = profile?.displayString
-                            ?: "${author.take(8)}...${author.takeLast(4)}"
+                            ?: author.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
                         Text(
                             text = displayName,
                             style = MaterialTheme.typography.labelMedium,
@@ -1686,7 +1687,7 @@ private fun LiveStreamCardContent(
                         ProfilePicture(url = profile?.picture, size = 20)
                         Spacer(Modifier.width(6.dp))
                         val displayName = profile?.displayString
-                            ?: "${author.take(8)}...${author.takeLast(4)}"
+                            ?: author.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
                         Text(
                             text = displayName,
                             style = MaterialTheme.typography.labelMedium,
diff --git a/app/src/main/kotlin/com/wisp/app/ui/component/WispDrawerContent.kt b/app/src/main/kotlin/com/wisp/app/ui/component/WispDrawerContent.kt
index ce0a30a..d2f400d 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/component/WispDrawerContent.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/component/WispDrawerContent.kt
@@ -73,6 +73,7 @@ import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import com.wisp.app.nostr.Nip05
 import com.wisp.app.nostr.ProfileData
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.repo.AccountInfo
 import com.wisp.app.ui.util.LocalCanSign
 
@@ -199,7 +200,7 @@ fun WispDrawerContent(
                 )
             } else if (pubkey != null) {
                 Text(
-                    text = pubkey.take(16) + "...",
+                    text = pubkey.toNpub().let { it.take(16) + "..." },
                     style = MaterialTheme.typography.bodySmall,
                     color = MaterialTheme.colorScheme.onSurfaceVariant,
                     maxLines = 1,
@@ -257,7 +258,7 @@ fun WispDrawerContent(
                         text = {
                             androidx.compose.material3.OutlinedTextField(
                                 value = statusText,
-                                onValueChange = { statusText = it },
+                                onValueChange = { new -> if (!com.wisp.app.ui.component.NsecPasteGuard.blockIfNsec(statusText, new)) statusText = new },
                                 label = { Text("What are you up to?") },
                                 singleLine = true,
                                 modifier = Modifier.fillMaxWidth()
@@ -300,9 +301,9 @@ fun WispDrawerContent(
                             ProfilePicture(url = pictureUrl, size = 36)
                             Spacer(modifier = Modifier.width(12.dp))
                             val displayText = if (isActive) {
-                                profile?.displayString ?: account.displayName ?: account.pubkeyHex.take(16) + "..."
+                                profile?.displayString ?: account.displayName ?: account.pubkeyHex.toNpub().let { it.take(16) + "..." }
                             } else {
-                                account.displayName ?: account.pubkeyHex.take(16) + "..."
+                                account.displayName ?: account.pubkeyHex.toNpub().let { it.take(16) + "..." }
                             }
                             Text(
                                 text = displayText,
diff --git a/app/src/main/kotlin/com/wisp/app/ui/component/ZapDialog.kt b/app/src/main/kotlin/com/wisp/app/ui/component/ZapDialog.kt
index 7394281..bb888fa 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/component/ZapDialog.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/component/ZapDialog.kt
@@ -458,7 +458,7 @@ fun ZapDialog(
                     // Message input
                     OutlinedTextField(
                         value = message,
-                        onValueChange = { message = it },
+                        onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(message, new)) message = new },
                         label = { Text(stringResource(R.string.placeholder_message_optional)) },
                         modifier = Modifier.fillMaxWidth(),
                         singleLine = true,
@@ -974,7 +974,7 @@ private fun SaveZapPresetDialog(
                 Spacer(Modifier.height(12.dp))
                 OutlinedTextField(
                     value = presetMessage,
-                    onValueChange = { presetMessage = it },
+                    onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(presetMessage, new)) presetMessage = new },
                     label = { Text(stringResource(R.string.placeholder_message_optional)) },
                     modifier = Modifier.fillMaxWidth(),
                     singleLine = true,
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/ArticleScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/ArticleScreen.kt
index c2ca953..cdb3180 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/ArticleScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/ArticleScreen.kt
@@ -57,6 +57,7 @@ import coil3.compose.AsyncImage
 import com.wisp.app.repo.EventRepository
 import com.wisp.app.ui.component.ProfilePicture
 import com.wisp.app.nostr.Nip30
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.nostr.NostrEvent
 import com.wisp.app.ui.component.ActionBar
 import com.wisp.app.ui.component.NoteActions
@@ -200,7 +201,7 @@ fun ArticleScreen(
                                     Spacer(Modifier.width(8.dp))
                                     Column {
                                         val displayName = profile?.displayString
-                                            ?: "${authorPubkey.take(8)}...${authorPubkey.takeLast(4)}"
+                                            ?: authorPubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
                                         Text(
                                             text = displayName,
                                             style = MaterialTheme.typography.titleSmall,
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/AuthScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/AuthScreen.kt
index c3ada99..ba70846 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/AuthScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/AuthScreen.kt
@@ -27,11 +27,13 @@ import androidx.compose.material3.OutlinedButton
 import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
+import com.wisp.app.ui.component.NsecPasteGuard
 import com.wisp.app.ui.component.QrScanner
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
@@ -85,6 +87,11 @@ fun AuthScreen(
         return
     }
 
+    DisposableEffect(Unit) {
+        NsecPasteGuard.nsecPasteAllowed = true
+        onDispose { NsecPasteGuard.nsecPasteAllowed = false }
+    }
+
     Column(
         modifier = Modifier
             .fillMaxSize()
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/BlossomServersScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/BlossomServersScreen.kt
index 89267fc..cc7f206 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/BlossomServersScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/BlossomServersScreen.kt
@@ -45,6 +45,7 @@ import androidx.compose.ui.zIndex
 import androidx.compose.ui.res.stringResource
 import com.wisp.app.R
 import com.wisp.app.relay.RelayPool
+import com.wisp.app.ui.component.NsecPasteGuard
 import com.wisp.app.viewmodel.BlossomServersViewModel
 import kotlin.math.roundToInt
 
@@ -95,7 +96,7 @@ fun BlossomServersScreen(
             ) {
                 OutlinedTextField(
                     value = newServerUrl,
-                    onValueChange = { viewModel.updateNewServerUrl(it) },
+                    onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(newServerUrl, new)) viewModel.updateNewServerUrl(new) },
                     label = { Text("https://...") },
                     singleLine = true,
                     modifier = Modifier.weight(1f)
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/ComposeScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/ComposeScreen.kt
index 6e309ee..168c623 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/ComposeScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/ComposeScreen.kt
@@ -123,6 +123,7 @@ import androidx.compose.ui.text.input.TextFieldValue
 import androidx.compose.ui.unit.dp
 import coil3.compose.AsyncImage
 import com.wisp.app.nostr.Nip19
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.nostr.Nip88
 import com.wisp.app.nostr.NostrEvent
 import com.wisp.app.relay.RelayPool
@@ -356,7 +357,11 @@ fun ComposeScreen(
                     }
                     OutlinedTextField(
                         value = content,
-                        onValueChange = { viewModel.updateContent(it) },
+                        onValueChange = { new ->
+                            if (!com.wisp.app.ui.component.NsecPasteGuard.blockIfNsec(content.text, new.text)) {
+                                viewModel.updateContent(new)
+                            }
+                        },
                         placeholder = { Text(stringResource(R.string.compose_gallery_placeholder)) },
                         enabled = !publishing && countdownSeconds == null,
                         visualTransformation = galleryEmojiVisual,
@@ -564,7 +569,7 @@ fun ComposeScreen(
                     replyTo?.let {
                         val replyProfile = profileRepo?.get(it.pubkey)
                         val replyAuthorName = replyProfile?.displayString
-                            ?: "${it.pubkey.take(8)}..."
+                            ?: it.pubkey.toNpub().let { npub -> "${npub.take(12)}...${npub.takeLast(4)}" }
                         var replyExpanded by remember { mutableStateOf(false) }
                         Surface(
                             shape = RoundedCornerShape(8.dp),
@@ -623,7 +628,7 @@ fun ComposeScreen(
                     // Quote context with resolved display names
                     quoteTo?.let {
                         val quoteAuthorName = profileRepo?.get(it.pubkey)?.displayString
-                            ?: "${it.pubkey.take(8)}..."
+                            ?: it.pubkey.toNpub().let { npub -> "${npub.take(12)}...${npub.takeLast(4)}" }
                         Surface(
                             shape = RoundedCornerShape(8.dp),
                             color = MaterialTheme.colorScheme.surfaceVariant,
@@ -742,6 +747,7 @@ fun ComposeScreen(
                             }),
                         enabled = enabled,
                         keyboardOptions = KeyboardOptions(capitalization = KeyboardCapitalization.Sentences),
+                        inputTransformation = com.wisp.app.ui.component.NsecPasteGuard.inputTransformation,
                         lineLimits = TextFieldLineLimits.MultiLine(),
                         outputTransformation = outputTransformation,
                         textStyle = MaterialTheme.typography.bodyLarge.copy(
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/ContactPickerScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/ContactPickerScreen.kt
index 6b57b1e..4ab05a5 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/ContactPickerScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/ContactPickerScreen.kt
@@ -40,6 +40,7 @@ import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import com.wisp.app.R
 import com.wisp.app.nostr.Nip05
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.repo.ContactRepository
 import com.wisp.app.repo.EventRepository
 import com.wisp.app.ui.component.ProfilePicture
@@ -149,7 +150,7 @@ fun ContactPickerScreen(
                     Column(modifier = Modifier.weight(1f)) {
                         Text(
                             text = profile?.displayString
-                                ?: entry.pubkey.take(8) + "..." + entry.pubkey.takeLast(4),
+                                ?: entry.pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" },
                             style = MaterialTheme.typography.bodyMedium,
                             color = MaterialTheme.colorScheme.onSurface,
                             maxLines = 1,
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/CustomEmojiScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/CustomEmojiScreen.kt
index 0eb4ee6..bac08d0 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/CustomEmojiScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/CustomEmojiScreen.kt
@@ -63,6 +63,7 @@ import com.wisp.app.nostr.CustomEmoji
 import com.wisp.app.nostr.EmojiSet
 import com.wisp.app.repo.CustomEmojiRepository
 import com.wisp.app.ui.component.EmojiLibrarySheet
+import com.wisp.app.ui.component.NsecPasteGuard
 import com.wisp.app.ui.component.pendingEmojiReactCallback
 
 @OptIn(ExperimentalMaterial3Api::class, ExperimentalLayoutApi::class)
@@ -403,7 +404,7 @@ fun CustomEmojiScreen(
                     ) {
                         OutlinedTextField(
                             value = url,
-                            onValueChange = { url = it },
+                            onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(url, new)) url = new },
                             placeholder = { Text("Image URL") },
                             singleLine = true,
                             modifier = Modifier.weight(1f)
@@ -562,7 +563,7 @@ private fun CreateEmojiSetDialog(
         text = {
             OutlinedTextField(
                 value = name,
-                onValueChange = { name = it },
+                onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(name, new)) name = new },
                 placeholder = { Text("Set name") },
                 singleLine = true
             )
@@ -611,7 +612,7 @@ private fun EditEmojiSetDialog(
             Column {
                 OutlinedTextField(
                     value = title,
-                    onValueChange = { title = it },
+                    onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(title, new)) title = new },
                     label = { Text("Set name") },
                     singleLine = true
                 )
@@ -628,7 +629,7 @@ private fun EditEmojiSetDialog(
                     Spacer(Modifier.width(4.dp))
                     OutlinedTextField(
                         value = url,
-                        onValueChange = { url = it },
+                        onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(url, new)) url = new },
                         placeholder = { Text("URL") },
                         singleLine = true,
                         modifier = Modifier.weight(1f)
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/DmConversationScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/DmConversationScreen.kt
index 56ad42c..5c02d20 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/DmConversationScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/DmConversationScreen.kt
@@ -72,6 +72,7 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import com.wisp.app.nostr.DmMessage
+import com.wisp.app.nostr.toNpub
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
@@ -201,7 +202,7 @@ fun DmConversationScreen(
                                 Column {
                                     val names = participants.take(3).joinToString(", ") { pk ->
                                         eventRepo?.getProfileData(pk)?.displayString
-                                            ?: pk.take(8) + "…"
+                                            ?: pk.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
                                     }
                                     val suffix = if (participants.size > 3) " +${participants.size - 3}" else ""
                                     Text(
@@ -302,7 +303,7 @@ fun DmConversationScreen(
                                     ProfilePicture(url = participantProfile?.picture, size = 20)
                                     Spacer(Modifier.width(8.dp))
                                     Text(
-                                        text = participantProfile?.displayString ?: pubkey.take(8) + "…",
+                                        text = participantProfile?.displayString ?: pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" },
                                         style = MaterialTheme.typography.labelMedium,
                                         color = MaterialTheme.colorScheme.onSurface,
                                         maxLines = 1,
@@ -489,7 +490,7 @@ fun DmConversationScreen(
                             val senderName = remember(replyMsg.senderPubkey) {
                                 if (replyMsg.senderPubkey == userPubkey) "You"
                                 else eventRepo?.getProfileData(replyMsg.senderPubkey)?.displayString
-                                    ?: replyMsg.senderPubkey.take(8) + "…"
+                                    ?: replyMsg.senderPubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
                             }
                             Row(
                                 modifier = Modifier.fillMaxWidth(),
@@ -557,7 +558,12 @@ fun DmConversationScreen(
                             }
                             androidx.compose.foundation.text.BasicTextField(
                                 value = dmTfv,
-                                onValueChange = { dmTfv = it; viewModel.updateMessageText(it.text) },
+                                onValueChange = { new ->
+                                    if (!com.wisp.app.ui.component.NsecPasteGuard.blockIfNsec(dmTfv.text, new.text)) {
+                                        dmTfv = new
+                                        viewModel.updateMessageText(new.text)
+                                    }
+                                },
                                 modifier = Modifier.weight(1f).heightIn(min = 28.dp).padding(top = 4.dp),
                                 enabled = uploadProgress == null,
                                 keyboardOptions = KeyboardOptions(capitalization = KeyboardCapitalization.Sentences),
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/DmListScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/DmListScreen.kt
index 9203fe4..80d26b6 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/DmListScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/DmListScreen.kt
@@ -61,6 +61,7 @@ import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import com.wisp.app.R
 import com.wisp.app.nostr.DmConversation
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.nostr.NostrSigner
 import com.wisp.app.repo.EventRepository
 import com.wisp.app.repo.GroupRoom
@@ -640,11 +641,11 @@ private fun ConversationRow(
         Column(modifier = Modifier.weight(1f)) {
             val displayName = if (convo.isGroup) {
                 convo.participants.take(3).joinToString(", ") { pk ->
-                    eventRepo.getProfileData(pk)?.displayString ?: pk.take(8) + "…"
+                    eventRepo.getProfileData(pk)?.displayString ?: pk.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
                 }.let { if (convo.participants.size > 3) "$it +${convo.participants.size - 3}" else it }
             } else {
                 eventRepo.getProfileData(convo.peerPubkey)?.displayString
-                    ?: convo.peerPubkey.take(8) + "..." + convo.peerPubkey.takeLast(4)
+                    ?: convo.peerPubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
             }
 
             Text(
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/DraftsScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/DraftsScreen.kt
index 2438719..1da5049 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/DraftsScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/DraftsScreen.kt
@@ -46,6 +46,7 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import com.wisp.app.nostr.Nip05
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.nostr.Nip30
 import com.wisp.app.nostr.Nip37
 import com.wisp.app.nostr.NostrEvent
@@ -283,7 +284,7 @@ private fun ScheduledPostItem(
     onDelete: () -> Unit
 ) {
     val displayName = remember(post.pubkey, userProfile?.displayString) {
-        userProfile?.displayString ?: (post.pubkey.take(8) + "…" + post.pubkey.takeLast(4))
+        userProfile?.displayString ?: post.pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
     }
     val publishTime = post.created_at
     val isFuture = publishTime > System.currentTimeMillis() / 1000
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/FeedScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/FeedScreen.kt
index 83cf901..43df05d 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/FeedScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/FeedScreen.kt
@@ -76,6 +76,7 @@ import androidx.compose.ui.focus.focusRequester
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import com.wisp.app.nostr.FollowSet
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.nostr.Nip05
 import com.wisp.app.nostr.Nip10
 import com.wisp.app.nostr.Nip69
@@ -1549,7 +1550,7 @@ private fun FeedArticleItem(
     }
 
     val displayName = profileData?.displayString
-        ?: "${event.pubkey.take(8)}...${event.pubkey.takeLast(4)}"
+        ?: event.pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
 
     Surface(
         shape = RoundedCornerShape(12.dp),
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/GroupDetailScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/GroupDetailScreen.kt
index 960e41f..1c2f936 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/GroupDetailScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/GroupDetailScreen.kt
@@ -64,6 +64,7 @@ import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import com.wisp.app.R
 import com.wisp.app.nostr.Nip29
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.nostr.NostrSigner
 import com.wisp.app.relay.RelayPool
 import com.wisp.app.repo.EventRepository
@@ -721,7 +722,7 @@ private fun MemberRow(
         Spacer(Modifier.width(12.dp))
         Column(modifier = Modifier.weight(1f)) {
             Text(
-                text = profile?.displayString ?: (pubkey.take(8) + "…"),
+                text = profile?.displayString ?: pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" },
                 style = MaterialTheme.typography.bodyMedium,
                 color = MaterialTheme.colorScheme.onSurface,
                 maxLines = 1,
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/GroupRoomScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/GroupRoomScreen.kt
index c64bc6a..33bc91e 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/GroupRoomScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/GroupRoomScreen.kt
@@ -135,6 +135,7 @@ import androidx.compose.ui.zIndex
 import coil3.compose.AsyncImage
 import com.wisp.app.R
 import com.wisp.app.nostr.Nip19
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.nostr.NostrSigner
 import com.wisp.app.nostr.hexToByteArray
 import com.wisp.app.nostr.ProfileData
@@ -578,6 +579,7 @@ fun GroupRoomScreen(
                             .then(pasteImagesModifier),
                         enabled = uploadProgress == null,
                         keyboardOptions = KeyboardOptions(capitalization = KeyboardCapitalization.Sentences),
+                        inputTransformation = com.wisp.app.ui.component.NsecPasteGuard.inputTransformation,
                         outputTransformation = groupEmojiTransformation,
                         lineLimits = lineLimits,
                         textStyle = MaterialTheme.typography.bodyLarge.copy(
@@ -776,7 +778,7 @@ fun GroupRoomScreen(
                                             eventRepo.getProfileData(rt.senderPubkey)
                                         }
                                         val replyName =
-                                            replyProfile?.displayString ?: rt.senderPubkey.take(8) + "…"
+                                            replyProfile?.displayString ?: rt.senderPubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
                                         GroupChatQuotedMessage(
                                             authorPubkey = rt.senderPubkey,
                                             authorName = replyName,
@@ -1218,7 +1220,7 @@ private fun GroupMessageBubble(
     noteActions: com.wisp.app.ui.component.NoteActions? = null
 ) {
     val profile = remember(message.senderPubkey) { eventRepo.getProfileData(message.senderPubkey) }
-    val displayName = profile?.displayString ?: (message.senderPubkey.take(8) + "…")
+    val displayName = profile?.displayString ?: message.senderPubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
     val background = MaterialTheme.colorScheme.background
     val isDarkTheme = (background.red * 0.299f + background.green * 0.587f + background.blue * 0.114f) < 0.5f
     val nameColor = remember(message.senderPubkey, isDarkTheme) { groupMemberColor(message.senderPubkey, isDarkTheme) }
@@ -1397,7 +1399,7 @@ private fun GroupMessageBubble(
                             val replyProfile = remember(replyToMessage.senderPubkey) {
                                 eventRepo.getProfileData(replyToMessage.senderPubkey)
                             }
-                            val replyName = replyProfile?.displayString ?: replyToMessage.senderPubkey.take(8) + "…"
+                            val replyName = replyProfile?.displayString ?: replyToMessage.senderPubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
                             GroupChatQuotedMessage(
                                 authorPubkey = replyToMessage.senderPubkey,
                                 authorName = replyName,
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/ListScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/ListScreen.kt
index 11bbf46..93da2e1 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/ListScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/ListScreen.kt
@@ -49,6 +49,7 @@ import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import com.wisp.app.R
 import com.wisp.app.nostr.FollowSet
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.nostr.Nip19
 import com.wisp.app.nostr.Nip51
 import com.wisp.app.nostr.toHex
@@ -240,7 +241,7 @@ fun ListScreen(
                     eventRepo.getProfileData(pubkey)
                 }
                 val displayName = profile?.displayString
-                    ?: pubkey.take(8) + "..." + pubkey.takeLast(4)
+                    ?: pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
 
                 Row(
                     verticalAlignment = Alignment.CenterVertically,
@@ -340,7 +341,7 @@ private fun FollowPickerDialog(
                     items(filteredFollows, key = { it.pubkey }) { entry ->
                         val profile = eventRepo.getProfileData(entry.pubkey)
                         val displayName = profile?.displayString
-                            ?: entry.pubkey.take(8) + "..." + entry.pubkey.takeLast(4)
+                            ?: entry.pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
                         val isMember = entry.pubkey in existingMembers
 
                         Row(
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/LiveStreamScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/LiveStreamScreen.kt
index 99b626e..2fde73b 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/LiveStreamScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/LiveStreamScreen.kt
@@ -86,6 +86,7 @@ import androidx.compose.ui.unit.sp
 import coil3.compose.AsyncImage
 import com.wisp.app.R
 import com.wisp.app.nostr.Nip19
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.nostr.NostrSigner
 import com.wisp.app.nostr.hexToByteArray
 import com.wisp.app.repo.EventRepository
@@ -284,7 +285,7 @@ fun LiveStreamScreen(
         AnimatedVisibility(visible = replyTarget != null) {
             replyTarget?.let { reply ->
                 val replyProfile = remember(reply.senderPubkey) { eventRepo.getProfileData(reply.senderPubkey) }
-                val replyName = replyProfile?.displayString ?: (reply.senderPubkey.take(8) + "…")
+                val replyName = replyProfile?.displayString ?: reply.senderPubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
                 Surface(
                     color = MaterialTheme.colorScheme.surfaceVariant,
                     modifier = Modifier.fillMaxWidth()
@@ -463,7 +464,7 @@ private fun StreamInfoBar(
     isZapAnimating: Boolean = false
 ) {
     val profile = remember(hostPubkey) { eventRepo.getProfileData(hostPubkey) }
-    val displayName = profile?.displayString ?: (hostPubkey.take(8) + "…")
+    val displayName = profile?.displayString ?: hostPubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
     val zapColor = com.wisp.app.ui.theme.WispThemeColors.zapColor
 
     Row(
@@ -593,7 +594,7 @@ private fun ZapAnnouncementBubble(
     onProfileClick: (String) -> Unit
 ) {
     val profile = remember(message.senderPubkey) { eventRepo.getProfileData(message.senderPubkey) }
-    val displayName = profile?.displayString ?: (message.senderPubkey.take(8) + "…")
+    val displayName = profile?.displayString ?: message.senderPubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
     val zapColor = com.wisp.app.ui.theme.WispThemeColors.zapColor
 
     Surface(
@@ -685,7 +686,7 @@ private fun LiveChatBubble(
     isZapInProgress: Boolean
 ) {
     val profile = remember(message.senderPubkey) { eventRepo.getProfileData(message.senderPubkey) }
-    val displayName = profile?.displayString ?: (message.senderPubkey.take(8) + "…")
+    val displayName = profile?.displayString ?: message.senderPubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
     val isOwnMessage = message.senderPubkey == myPubkey
     val nameColor = if (isOwnMessage) {
         MaterialTheme.colorScheme.primary
@@ -866,7 +867,7 @@ private fun LiveChatBubble(
                     val replyProfile = remember(replyToMessage.senderPubkey) {
                         eventRepo.getProfileData(replyToMessage.senderPubkey)
                     }
-                    val replyName = replyProfile?.displayString ?: (replyToMessage.senderPubkey.take(8) + "…")
+                    val replyName = replyProfile?.displayString ?: replyToMessage.senderPubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
                     Row(
                         modifier = Modifier
                             .fillMaxWidth()
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/NotificationsScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/NotificationsScreen.kt
index 3a1d51f..98372d5 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/NotificationsScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/NotificationsScreen.kt
@@ -88,6 +88,7 @@ import androidx.compose.ui.unit.sp
 import androidx.compose.ui.res.stringResource
 import coil3.compose.AsyncImage
 import com.wisp.app.nostr.FlatNotificationItem
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.nostr.Nip10
 import com.wisp.app.nostr.Nip30
 import com.wisp.app.nostr.Nip69
@@ -648,7 +649,7 @@ private fun ZenNotificationRow(
 ) {
     val profile = remember(profileVersion, item.actorPubkey) { resolveProfile(item.actorPubkey) }
     val displayName = profile?.displayString
-        ?: item.actorPubkey.take(8) + "..." + item.actorPubkey.takeLast(4)
+        ?: item.actorPubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
 
     Column(modifier = Modifier.fillMaxWidth()) {
         // Compact row — always visible
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/OnboardingScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/OnboardingScreen.kt
index abab699..8310b3a 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/OnboardingScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/OnboardingScreen.kt
@@ -166,7 +166,7 @@ fun OnboardingScreen(
             Text(
                 when {
                     !relaysReady -> stringResource(R.string.onboarding_please_wait)
-                    publishing -> stringResource(R.string.onboarding_publishing)
+                    publishing -> stringResource(R.string.onboarding_creating_account)
                     else -> stringResource(R.string.btn_continue)
                 }
             )
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/OnboardingSuggestionsScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/OnboardingSuggestionsScreen.kt
index 9dc688e..720123c 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/OnboardingSuggestionsScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/OnboardingSuggestionsScreen.kt
@@ -39,6 +39,7 @@ import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import com.wisp.app.R
 import com.wisp.app.nostr.ProfileData
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.ui.component.FollowToggleButton
 import com.wisp.app.ui.component.ProfilePicture
 import com.wisp.app.ui.component.StackedAvatars
@@ -203,7 +204,7 @@ private fun CreatorCards(
                     ProfilePicture(url = profile?.picture, size = 56)
                     Spacer(Modifier.height(8.dp))
                     Text(
-                        text = profile?.displayString ?: pubkey.take(8) + "...",
+                        text = profile?.displayString ?: pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" },
                         style = MaterialTheme.typography.bodyMedium.copy(fontWeight = FontWeight.Medium),
                         color = MaterialTheme.colorScheme.onSurface,
                         maxLines = 1,
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/ProfileEditScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/ProfileEditScreen.kt
index f42a11a..2564973 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/ProfileEditScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/ProfileEditScreen.kt
@@ -44,6 +44,7 @@ import androidx.compose.ui.unit.dp
 import androidx.compose.ui.res.stringResource
 import com.wisp.app.R
 import com.wisp.app.relay.RelayPool
+import com.wisp.app.ui.component.NsecPasteGuard
 import com.wisp.app.viewmodel.ProfileViewModel
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
@@ -114,7 +115,7 @@ fun ProfileEditScreen(
         ) {
             OutlinedTextField(
                 value = name,
-                onValueChange = { viewModel.updateName(it) },
+                onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(name, new)) viewModel.updateName(new) },
                 label = { Text(stringResource(R.string.placeholder_name)) },
                 singleLine = true,
                 modifier = Modifier.fillMaxWidth().scrollOnFocus()
@@ -122,7 +123,7 @@ fun ProfileEditScreen(
             Spacer(Modifier.height(12.dp))
             OutlinedTextField(
                 value = about,
-                onValueChange = { viewModel.updateAbout(it) },
+                onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(about, new)) viewModel.updateAbout(new) },
                 label = { Text(stringResource(R.string.placeholder_about)) },
                 minLines = 3,
                 modifier = Modifier.fillMaxWidth().scrollOnFocus()
@@ -134,7 +135,7 @@ fun ProfileEditScreen(
             ) {
                 OutlinedTextField(
                     value = picture,
-                    onValueChange = { viewModel.updatePicture(it) },
+                    onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(picture, new)) viewModel.updatePicture(new) },
                     label = { Text(stringResource(R.string.placeholder_profile_picture_url)) },
                     singleLine = true,
                     modifier = Modifier.weight(1f).scrollOnFocus()
@@ -161,7 +162,7 @@ fun ProfileEditScreen(
             ) {
                 OutlinedTextField(
                     value = banner,
-                    onValueChange = { viewModel.updateBanner(it) },
+                    onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(banner, new)) viewModel.updateBanner(new) },
                     label = { Text(stringResource(R.string.placeholder_banner_url)) },
                     singleLine = true,
                     modifier = Modifier.weight(1f).scrollOnFocus()
@@ -184,7 +185,7 @@ fun ProfileEditScreen(
             Spacer(Modifier.height(12.dp))
             OutlinedTextField(
                 value = nip05,
-                onValueChange = { viewModel.updateNip05(it) },
+                onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(nip05, new)) viewModel.updateNip05(new) },
                 label = { Text(stringResource(R.string.placeholder_nip05)) },
                 singleLine = true,
                 modifier = Modifier.fillMaxWidth().scrollOnFocus()
@@ -192,7 +193,7 @@ fun ProfileEditScreen(
             Spacer(Modifier.height(12.dp))
             OutlinedTextField(
                 value = lud16,
-                onValueChange = { viewModel.updateLud16(it) },
+                onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(lud16, new)) viewModel.updateLud16(new) },
                 label = { Text(stringResource(R.string.placeholder_lightning_address)) },
                 singleLine = true,
                 modifier = Modifier.fillMaxWidth().scrollOnFocus()
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/RelayDetailScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/RelayDetailScreen.kt
index d67358e..56135bb 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/RelayDetailScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/RelayDetailScreen.kt
@@ -50,6 +50,7 @@ import com.wisp.app.relay.RelayHealthTracker
 import com.wisp.app.repo.RelayInfoRepository
 import com.wisp.app.nostr.ProfileData
 import com.wisp.app.nostr.RelaySet
+import com.wisp.app.ui.component.NsecPasteGuard
 import com.wisp.app.ui.component.ProfilePicture
 import com.wisp.app.ui.component.RelayIcon
 import com.wisp.app.ui.theme.WispThemeColors
@@ -377,7 +378,7 @@ private fun RelayHeader(
                                     // Create new set
                                     androidx.compose.material3.OutlinedTextField(
                                         value = newSetName,
-                                        onValueChange = { newSetName = it },
+                                        onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(newSetName, new)) newSetName = new },
                                         placeholder = { Text(stringResource(R.string.placeholder_new_set_name)) },
                                         singleLine = true,
                                         modifier = Modifier.fillMaxWidth(),
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/RelayScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/RelayScreen.kt
index 3b49700..df0a564 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/RelayScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/RelayScreen.kt
@@ -41,6 +41,7 @@ import com.wisp.app.relay.RelayConfig
 import com.wisp.app.relay.RelayPool
 import com.wisp.app.relay.RelaySetType
 import com.wisp.app.R
+import com.wisp.app.ui.component.NsecPasteGuard
 import com.wisp.app.viewmodel.RelayViewModel
 
 @OptIn(ExperimentalMaterial3Api::class)
@@ -102,7 +103,7 @@ fun RelayScreen(
                 ) {
                     OutlinedTextField(
                         value = newRelayUrl,
-                        onValueChange = { viewModel.updateNewRelayUrl(it) },
+                        onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(newRelayUrl, new)) viewModel.updateNewRelayUrl(new) },
                         label = { Text(stringResource(R.string.placeholder_relay_url)) },
                         singleLine = true,
                         modifier = Modifier.weight(1f)
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/SafetyScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/SafetyScreen.kt
index 53b3eaa..8ad2448 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/SafetyScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/SafetyScreen.kt
@@ -40,9 +40,11 @@ import androidx.compose.ui.unit.dp
 import androidx.compose.ui.res.stringResource
 import com.wisp.app.R
 import com.wisp.app.repo.ExtendedNetworkCache
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.repo.MuteRepository
 import com.wisp.app.repo.ProfileRepository
 import com.wisp.app.repo.SafetyPreferences
+import com.wisp.app.ui.component.NsecPasteGuard
 import com.wisp.app.ui.component.ProfilePicture
 import kotlinx.coroutines.flow.StateFlow
 
@@ -145,7 +147,7 @@ private fun MutedWordsTab(
         ) {
             OutlinedTextField(
                 value = newWord,
-                onValueChange = { newWord = it },
+                onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(newWord, new)) newWord = new },
                 placeholder = { Text(stringResource(R.string.placeholder_add_word_phrase)) },
                 singleLine = true,
                 modifier = Modifier.weight(1f)
@@ -249,7 +251,7 @@ private fun MutedUsersTab(
                     Spacer(Modifier.width(12.dp))
                     Column(modifier = Modifier.weight(1f)) {
                         Text(
-                            text = profile?.displayString ?: (pubkey.take(16) + "..."),
+                            text = profile?.displayString ?: (pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }),
                             style = MaterialTheme.typography.bodyLarge,
                             color = MaterialTheme.colorScheme.onSurface,
                             maxLines = 1,
@@ -257,7 +259,7 @@ private fun MutedUsersTab(
                         )
                         if (profile != null) {
                             Text(
-                                text = pubkey.take(16) + "...",
+                                text = pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" },
                                 style = MaterialTheme.typography.bodySmall,
                                 color = MaterialTheme.colorScheme.onSurfaceVariant,
                                 maxLines = 1,
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/SearchScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/SearchScreen.kt
index 427c59d..6891aa0 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/SearchScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/SearchScreen.kt
@@ -76,6 +76,7 @@ import com.wisp.app.repo.TranslationRepository
 import com.wisp.app.repo.TranslationState
 import com.wisp.app.ui.component.FollowButton
 import com.wisp.app.ui.component.NoteActions
+import com.wisp.app.ui.component.NsecPasteGuard
 import com.wisp.app.ui.component.PostCard
 import com.wisp.app.ui.component.ProfilePicture
 import com.wisp.app.viewmodel.RelayOption
@@ -213,7 +214,7 @@ fun SearchScreen(
                     ) {
                         TextField(
                             value = query,
-                            onValueChange = { viewModel.updateQuery(it) },
+                            onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(query, new)) viewModel.updateQuery(new) },
                             singleLine = true,
                             textStyle = MaterialTheme.typography.bodyLarge,
                             trailingIcon = {
@@ -640,7 +641,7 @@ private fun AddRelayDialog(
         text = {
             OutlinedTextField(
                 value = url,
-                onValueChange = { url = it },
+                onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(url, new)) url = new },
                 placeholder = { Text(stringResource(R.string.placeholder_add_relay)) },
                 singleLine = true,
                 modifier = Modifier.fillMaxWidth(),
@@ -714,7 +715,7 @@ private fun AuthorFilter(
             ) {
                 OutlinedTextField(
                     value = authorQuery,
-                    onValueChange = { authorQuery = it },
+                    onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(authorQuery, new)) authorQuery = new },
                     placeholder = { Text("Search for author") },
                     singleLine = true,
                     modifier = Modifier.weight(1f),
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/SocialGraphScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/SocialGraphScreen.kt
index ce29649..bf751c0 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/SocialGraphScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/SocialGraphScreen.kt
@@ -70,6 +70,7 @@ import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.compose.ui.res.stringResource
 import com.wisp.app.R
 import com.wisp.app.nostr.Nip19
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.nostr.hexToByteArray
 import com.wisp.app.repo.DiscoveryState
 import com.wisp.app.repo.ExtendedNetworkCache
@@ -608,7 +609,7 @@ private fun TopAccountRow(
             Text(
                 text = profile?.displayName
                     ?: profile?.name
-                    ?: "${account.pubkey.take(8)}...",
+                    ?: account.pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" },
                 style = MaterialTheme.typography.bodyMedium,
                 color = MaterialTheme.colorScheme.onSurface,
                 maxLines = 1,
@@ -657,7 +658,7 @@ private fun NodeDetailSheet(
         Text(
             text = profile?.displayName
                 ?: profile?.name
-                ?: "${node.pubkey.take(8)}...",
+                ?: node.pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" },
             style = MaterialTheme.typography.titleLarge,
             color = MaterialTheme.colorScheme.onSurface
         )
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/UserProfileScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/UserProfileScreen.kt
index 47ea226..2e5b4e1 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/UserProfileScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/UserProfileScreen.kt
@@ -41,6 +41,7 @@ import androidx.compose.material.icons.filled.Search
 import androidx.compose.material.icons.filled.Close
 import androidx.compose.material.icons.outlined.CurrencyBitcoin
 import com.wisp.app.nostr.Nip30
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.ui.component.Nip05Badge
 import com.wisp.app.ui.component.RichContent
 import com.wisp.app.ui.component.parseImetaTags
@@ -1393,7 +1394,7 @@ private fun FollowEntryRow(
 ) {
     val profile = eventRepo?.getProfileData(entry.pubkey)
     val displayName = profile?.displayString
-        ?: entry.pubkey.take(8) + "..." + entry.pubkey.takeLast(4)
+        ?: entry.pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
 
     Row(
         verticalAlignment = Alignment.CenterVertically,
diff --git a/app/src/main/kotlin/com/wisp/app/ui/screen/WalletScreen.kt b/app/src/main/kotlin/com/wisp/app/ui/screen/WalletScreen.kt
index 01ecc9e..4a7fe06 100644
--- a/app/src/main/kotlin/com/wisp/app/ui/screen/WalletScreen.kt
+++ b/app/src/main/kotlin/com/wisp/app/ui/screen/WalletScreen.kt
@@ -148,6 +148,7 @@ import com.wisp.app.repo.BalanceUnit
 import com.wisp.app.repo.FiatPreferences
 import com.wisp.app.repo.WalletMode
 import com.wisp.app.repo.WalletTransaction
+import com.wisp.app.ui.component.NsecPasteGuard
 import com.wisp.app.ui.component.SatsNumpad
 import com.wisp.app.ui.util.AmountFormatter
 import com.wisp.app.viewmodel.AutoCheckState
@@ -657,7 +658,7 @@ private fun WalletConnectionContent(
 
     OutlinedTextField(
         value = connectionString,
-        onValueChange = onConnectionStringChange,
+        onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(connectionString, new)) onConnectionStringChange(new) },
         label = { Text(stringResource(R.string.wallet_nwc_connection_string)) },
         placeholder = { Text("nostr+walletconnect://...") },
         modifier = Modifier.fillMaxWidth(),
@@ -1252,7 +1253,7 @@ private fun SendInputContent(
 
         OutlinedTextField(
             value = input,
-            onValueChange = onInputChange,
+            onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(input, new)) onInputChange(new) },
             label = { Text(stringResource(R.string.wallet_lightning_address_invoice)) },
             placeholder = { Text(stringResource(R.string.placeholder_user_domain)) },
             modifier = Modifier.fillMaxWidth(),
@@ -1260,7 +1261,7 @@ private fun SendInputContent(
             maxLines = 4,
             trailingIcon = {
                 IconButton(onClick = {
-                    clipboardManager.getText()?.text?.let { onInputChange(it) }
+                    clipboardManager.getText()?.text?.let { new -> if (!NsecPasteGuard.blockIfNsec(input, new)) onInputChange(new) }
                 }) {
                     Icon(Icons.Default.ContentPaste, contentDescription = stringResource(R.string.wallet_paste))
                 }
@@ -2612,7 +2613,7 @@ private fun SparkRestoreSeedContent(
 
         OutlinedTextField(
             value = restoreMnemonic,
-            onValueChange = onRestoreMnemonicChange,
+            onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(restoreMnemonic, new)) onRestoreMnemonicChange(new) },
             label = { Text("Recovery phrase") },
             placeholder = { Text("Enter 12 or 24 words...") },
             modifier = Modifier.fillMaxWidth(),
@@ -3638,7 +3639,7 @@ private fun DeleteWalletConfirmContent(
 
             OutlinedTextField(
                 value = confirmText,
-                onValueChange = onConfirmTextChange,
+                onValueChange = { new -> if (!NsecPasteGuard.blockIfNsec(confirmText, new)) onConfirmTextChange(new) },
                 label = { Text("Type DELETE to confirm") },
                 modifier = Modifier.fillMaxWidth(),
                 singleLine = true
diff --git a/app/src/main/kotlin/com/wisp/app/viewmodel/ComposeViewModel.kt b/app/src/main/kotlin/com/wisp/app/viewmodel/ComposeViewModel.kt
index 7e2e57b..5fb8114 100644
--- a/app/src/main/kotlin/com/wisp/app/viewmodel/ComposeViewModel.kt
+++ b/app/src/main/kotlin/com/wisp/app/viewmodel/ComposeViewModel.kt
@@ -27,6 +27,7 @@ import com.wisp.app.nostr.Nip88
 import com.wisp.app.nostr.NostrEvent
 import com.wisp.app.nostr.NostrSigner
 import com.wisp.app.nostr.toHex
+import com.wisp.app.nostr.toNpub
 import com.wisp.app.relay.OutboxRouter
 import com.wisp.app.relay.RelayPool
 import com.wisp.app.repo.BlossomRepository
@@ -514,7 +515,7 @@ class ComposeViewModel(app: Application, private val savedStateHandle: SavedStat
     private fun sanitizeMentionDisplay(candidate: MentionCandidate): String {
         val raw = candidate.profile.displayName?.takeIf { it.isNotBlank() }
             ?: candidate.profile.name?.takeIf { it.isNotBlank() }
-            ?: return candidate.profile.pubkey.take(8) + "…" + candidate.profile.pubkey.takeLast(4)
+            ?: return candidate.profile.pubkey.toNpub().let { "${it.take(12)}...${it.takeLast(4)}" }
         // Strip whitespace and leading @ so the mention remains a single token and mention detection
         // can't re-trigger on a name that itself contains spaces.
         return raw.trim().removePrefix("@").replace(Regex("\\s+"), "_")
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 2ff492f..d8b8557 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -473,6 +473,7 @@
     <string name="onboarding_almost_there">Almost there…</string>
     <string name="onboarding_please_wait">Please wait…</string>
     <string name="onboarding_publishing">Publishing…</string>
+    <string name="onboarding_creating_account">Creating account…</string>
     <string name="onboarding_wisp_logo">Wisp logo</string>
     <string name="onboarding_follow_all_x">Follow All (%d)</string>