diff --git a/changelog.d/8445.bugfix b/changelog.d/8445.bugfix
new file mode 100644
index 0000000000..4f5b0f0349
--- /dev/null
+++ b/changelog.d/8445.bugfix
@@ -0,0 +1 @@
+Fix: Update verification popup text when a re-verification is needed after rust migration (read only sessions)
diff --git a/library/ui-strings/src/main/res/values/strings.xml b/library/ui-strings/src/main/res/values/strings.xml
index 3d1a36d4c3..ccdbae634e 100644
--- a/library/ui-strings/src/main/res/values/strings.xml
+++ b/library/ui-strings/src/main/res/values/strings.xml
@@ -2446,6 +2446,7 @@
     </plurals>
 
     <string name="crosssigning_verify_this_session">Verify this device</string>
+    <string name="crosssigning_verify_after_update">App updated</string>
     <string name="crosssigning_cannot_verify_this_session">Unable to verify this device</string>
     <string name="crosssigning_cannot_verify_this_session_desc">You won’t be able to access encrypted message history. Reset your Secure Message Backup and verification keys to start fresh.</string>
 
@@ -2707,6 +2708,7 @@
     <string tools:ignore="UnusedResources" name="crosssigning_verify_session">Verify login</string>
     <string name="cross_signing_verify_by_emoji">Interactively Verify by Emoji</string>
     <string name="confirm_your_identity">Confirm your identity by verifying this login from one of your other sessions, granting it access to encrypted messages.</string>
+    <string name="confirm_your_identity_after_update">Secure messaging has been improved with the latest update. Please re-verify your device.</string>
     <string name="confirm_your_identity_quad_s">Confirm your identity by verifying this login, granting it access to encrypted messages.</string>
 
     <string name="failed_to_initialize_cross_signing">Failed to set up Cross Signing</string>
diff --git a/vector/src/main/java/im/vector/app/features/MainActivity.kt b/vector/src/main/java/im/vector/app/features/MainActivity.kt
index cffb1577cf..ff0e9721e4 100644
--- a/vector/src/main/java/im/vector/app/features/MainActivity.kt
+++ b/vector/src/main/java/im/vector/app/features/MainActivity.kt
@@ -29,6 +29,7 @@ import com.airbnb.mvrx.viewModel
 import com.bumptech.glide.Glide
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import dagger.hilt.android.AndroidEntryPoint
+import im.vector.app.BuildConfig
 import im.vector.app.R
 import im.vector.app.core.extensions.startSyncing
 import im.vector.app.core.extensions.vectorStore
@@ -170,6 +171,19 @@ class MainActivity : VectorBaseActivity<ActivityMainBinding>(), UnlockedActivity
     }
 
     private fun handleAppStarted() {
+        // On the first run with rust crypto this would be false
+        if (!vectorPreferences.isOnRustCrypto()) {
+            if (activeSessionHolder.hasActiveSession()) {
+                vectorPreferences.setHadExistingLegacyData(activeSessionHolder.getActiveSession().isOpenable)
+            } else {
+                vectorPreferences.setHadExistingLegacyData(false)
+            }
+        }
+
+        if (BuildConfig.FLAVOR == "rustCrypto") {
+            vectorPreferences.setIsOnRustCrypto(true)
+        }
+
         if (intent.hasExtra(EXTRA_NEXT_INTENT)) {
             // Start the next Activity
             startSyncing()
diff --git a/vector/src/main/java/im/vector/app/features/home/HomeActivity.kt b/vector/src/main/java/im/vector/app/features/home/HomeActivity.kt
index 42eb200887..428e62724b 100644
--- a/vector/src/main/java/im/vector/app/features/home/HomeActivity.kt
+++ b/vector/src/main/java/im/vector/app/features/home/HomeActivity.kt
@@ -469,11 +469,21 @@ class HomeActivity :
 
     private fun handleOnNewSession(event: HomeActivityViewEvents.CurrentSessionNotVerified) {
         // We need to ask
+        val titleRes = if (event.afterMigration) {
+            R.string.crosssigning_verify_after_update
+        } else {
+            R.string.crosssigning_verify_this_session
+        }
+        val descRes = if (event.afterMigration) {
+            R.string.confirm_your_identity_after_update
+        } else {
+            R.string.confirm_your_identity
+        }
         promptSecurityEvent(
                 uid = PopupAlertManager.VERIFY_SESSION_UID,
                 userItem = event.userItem,
-                titleRes = R.string.crosssigning_verify_this_session,
-                descRes = R.string.confirm_your_identity,
+                titleRes = titleRes,
+                descRes = descRes,
         ) {
             it.navigator.requestSelfSessionVerification(it)
         }
diff --git a/vector/src/main/java/im/vector/app/features/home/HomeActivityViewEvents.kt b/vector/src/main/java/im/vector/app/features/home/HomeActivityViewEvents.kt
index 5f8d9cdc51..c57f32694b 100644
--- a/vector/src/main/java/im/vector/app/features/home/HomeActivityViewEvents.kt
+++ b/vector/src/main/java/im/vector/app/features/home/HomeActivityViewEvents.kt
@@ -23,7 +23,7 @@ sealed interface HomeActivityViewEvents : VectorViewEvents {
     data class AskPasswordToInitCrossSigning(val userItem: MatrixItem.UserItem) : HomeActivityViewEvents
     data class CurrentSessionNotVerified(
             val userItem: MatrixItem.UserItem,
-//            val waitForIncomingRequest: Boolean = true,
+            val afterMigration: Boolean
     ) : HomeActivityViewEvents
 
     data class CurrentSessionCannotBeVerified(
diff --git a/vector/src/main/java/im/vector/app/features/home/HomeActivityViewModel.kt b/vector/src/main/java/im/vector/app/features/home/HomeActivityViewModel.kt
index 73bbcac070..eb4a796a49 100644
--- a/vector/src/main/java/im/vector/app/features/home/HomeActivityViewModel.kt
+++ b/vector/src/main/java/im/vector/app/features/home/HomeActivityViewModel.kt
@@ -453,6 +453,7 @@ class HomeActivityViewModel @AssistedInject constructor(
                                 _viewEvents.post(
                                         HomeActivityViewEvents.CurrentSessionNotVerified(
                                                 session.getUserOrDefault(session.myUserId).toMatrixItem(),
+                                                vectorPreferences.isOnRustCrypto() && vectorPreferences.hadExistingLegacyData()
                                         )
                                 )
                             } else {
diff --git a/vector/src/main/java/im/vector/app/features/settings/VectorPreferences.kt b/vector/src/main/java/im/vector/app/features/settings/VectorPreferences.kt
index f915395a42..0dd8d14460 100755
--- a/vector/src/main/java/im/vector/app/features/settings/VectorPreferences.kt
+++ b/vector/src/main/java/im/vector/app/features/settings/VectorPreferences.kt
@@ -254,6 +254,8 @@ class VectorPreferences @Inject constructor(
         const val TAKE_PHOTO_VIDEO_MODE_PHOTO = 1
         const val TAKE_PHOTO_VIDEO_MODE_VIDEO = 2
 
+        const val HAD_EXISTING_LEGACY_DATA = "HAD_EXISTING_LEGACY_DATA"
+        const val IS_ON_RUST_CRYPTO = "IS_ON_RUST_CRYPTO"
         // Background sync modes
 
         // some preferences keys must be kept after a logout
@@ -1278,4 +1280,24 @@ class VectorPreferences @Inject constructor(
             putBoolean(SETTINGS_NEW_LOGIN_ALERT_SHOWN_FOR_DEVICE + deviceId, true)
         }
     }
+
+    fun hadExistingLegacyData(): Boolean {
+        return defaultPrefs.getBoolean(HAD_EXISTING_LEGACY_DATA, false)
+    }
+
+    fun setHadExistingLegacyData(had: Boolean) {
+        defaultPrefs.edit {
+            putBoolean(HAD_EXISTING_LEGACY_DATA, had)
+        }
+    }
+
+    fun isOnRustCrypto(): Boolean {
+        return defaultPrefs.getBoolean(IS_ON_RUST_CRYPTO, false)
+    }
+
+    fun setIsOnRustCrypto(boolean: Boolean) {
+        defaultPrefs.edit {
+            putBoolean(IS_ON_RUST_CRYPTO, boolean)
+        }
+    }
 }