diff --git a/library/ui-strings/src/main/res/values/strings.xml b/library/ui-strings/src/main/res/values/strings.xml
index c997fb5639..97db6ea627 100644
--- a/library/ui-strings/src/main/res/values/strings.xml
+++ b/library/ui-strings/src/main/res/values/strings.xml
@@ -3250,10 +3250,12 @@
     <string name="a11y_device_manager_device_type_unknown">Unknown device type</string>
     <string name="device_manager_verification_status_verified">Verified session</string>
     <string name="device_manager_verification_status_unverified">Unverified session</string>
+    <string name="device_manager_verification_status_unknown">Unknown verification status</string>
     <string name="device_manager_verification_status_detail_current_session_verified">Your current session is ready for secure messaging.</string>
     <string name="device_manager_verification_status_detail_other_session_verified">This session is ready for secure messaging.</string>
     <string name="device_manager_verification_status_detail_current_session_unverified">Verify your current session for enhanced secure messaging.</string>
     <string name="device_manager_verification_status_detail_other_session_unverified">Verify or sign out from this session for best security and reliability.</string>
+    <string name="device_manager_verification_status_detail_other_session_unknown">Verify your current session to reveal this session\'s verification status.</string>
     <string name="device_manager_verify_session">Verify Session</string>
     <string name="device_manager_view_details">View Details</string>
     <string name="device_manager_other_sessions_view_all">View All (%1$d)</string>
diff --git a/vector/src/main/java/im/vector/app/features/settings/devices/v2/list/OtherSessionsController.kt b/vector/src/main/java/im/vector/app/features/settings/devices/v2/list/OtherSessionsController.kt
index b0ba8baa1a..59e7e1888e 100644
--- a/vector/src/main/java/im/vector/app/features/settings/devices/v2/list/OtherSessionsController.kt
+++ b/vector/src/main/java/im/vector/app/features/settings/devices/v2/list/OtherSessionsController.kt
@@ -53,7 +53,7 @@ class OtherSessionsController @Inject constructor(
             data.forEach { device ->
                 val dateFormatKind = if (device.isInactive) DateFormatKind.TIMELINE_DAY_DIVIDER else DateFormatKind.DEFAULT_DATE_AND_TIME
                 val formattedLastActivityDate = host.dateFormatter.format(device.deviceInfo.lastSeenTs, dateFormatKind)
-                val description = calculateDescription(device, formattedLastActivityDate)
+                val description = buildDescription(device, formattedLastActivityDate)
                 val descriptionColor = if (device.isCurrentDevice) {
                     host.colorProvider.getColorFromAttribute(R.attr.colorError)
                 } else {
@@ -77,7 +77,7 @@ class OtherSessionsController @Inject constructor(
         }
     }
 
-    private fun calculateDescription(device: DeviceFullInfo, formattedLastActivityDate: String): String {
+    private fun buildDescription(device: DeviceFullInfo, formattedLastActivityDate: String): String {
         return when {
             device.isInactive -> {
                 stringProvider.getQuantityString(
@@ -93,6 +93,9 @@ class OtherSessionsController @Inject constructor(
             device.isCurrentDevice -> {
                 stringProvider.getString(R.string.device_manager_other_sessions_description_unverified_current_session)
             }
+            device.roomEncryptionTrustLevel == RoomEncryptionTrustLevel.Default -> {
+                stringProvider.getString(R.string.device_manager_session_last_activity, formattedLastActivityDate)
+            }
             else -> {
                 stringProvider.getString(R.string.device_manager_other_sessions_description_unverified, formattedLastActivityDate)
             }
diff --git a/vector/src/main/java/im/vector/app/features/settings/devices/v2/list/SessionInfoView.kt b/vector/src/main/java/im/vector/app/features/settings/devices/v2/list/SessionInfoView.kt
index 6f6c5b24e2..bef3f5c9e4 100644
--- a/vector/src/main/java/im/vector/app/features/settings/devices/v2/list/SessionInfoView.kt
+++ b/vector/src/main/java/im/vector/app/features/settings/devices/v2/list/SessionInfoView.kt
@@ -90,10 +90,11 @@ class SessionInfoView @JvmOverloads constructor(
             isVerifyButtonVisible: Boolean,
     ) {
         views.sessionInfoVerificationStatusImageView.render(encryptionTrustLevel)
-        if (encryptionTrustLevel == RoomEncryptionTrustLevel.Trusted) {
-            renderCrossSigningVerified(isCurrentSession)
-        } else {
-            renderCrossSigningUnverified(isCurrentSession, isVerifyButtonVisible)
+        when {
+            encryptionTrustLevel == RoomEncryptionTrustLevel.Trusted -> renderCrossSigningVerified(isCurrentSession)
+            encryptionTrustLevel == RoomEncryptionTrustLevel.Default && !isCurrentSession -> renderCrossSigningUnknown()
+            else -> renderCrossSigningUnverified(isCurrentSession, isVerifyButtonVisible)
+
         }
         if (hasLearnMoreLink) {
             appendLearnMoreToVerificationStatus()
@@ -142,6 +143,12 @@ class SessionInfoView @JvmOverloads constructor(
         views.sessionInfoVerifySessionButton.isVisible = isVerifyButtonVisible
     }
 
+    private fun renderCrossSigningUnknown() {
+        views.sessionInfoVerificationStatusTextView.text = context.getString(R.string.device_manager_verification_status_unknown)
+        views.sessionInfoVerificationStatusDetailTextView.text = context.getString(R.string.device_manager_verification_status_detail_other_session_unknown)
+        views.sessionInfoVerifySessionButton.isVisible = false
+    }
+
     private fun renderDeviceInfo(sessionName: String, deviceType: DeviceType, stringProvider: StringProvider) {
         setDeviceTypeIconUseCase.execute(deviceType, views.sessionInfoDeviceTypeImageView, stringProvider)
         views.sessionInfoNameTextView.text = sessionName