diff --git a/app/src/main/java/org/linphone/ui/call/viewmodel/CurrentCallViewModel.kt b/app/src/main/java/org/linphone/ui/call/viewmodel/CurrentCallViewModel.kt
index 51e56e5c0..d3e95faab 100644
--- a/app/src/main/java/org/linphone/ui/call/viewmodel/CurrentCallViewModel.kt
+++ b/app/src/main/java/org/linphone/ui/call/viewmodel/CurrentCallViewModel.kt
@@ -36,6 +36,7 @@ import org.linphone.core.AlertListenerStub
 import org.linphone.core.AudioDevice
 import org.linphone.core.Call
 import org.linphone.core.CallListenerStub
+import org.linphone.core.ChatRoom.SecurityLevel
 import org.linphone.core.Core
 import org.linphone.core.CoreListenerStub
 import org.linphone.core.MediaDirection
@@ -556,19 +557,20 @@ class CurrentCallViewModel @UiThread constructor() : ViewModel() {
         when (currentCall.currentParams.mediaEncryption) {
             MediaEncryption.ZRTP -> {
                 val authToken = currentCall.authenticationToken
-                val deviceIsTrusted = currentCall.authenticationTokenVerified && authToken != null
+                val isDeviceTrusted = currentCall.authenticationTokenVerified && authToken != null
                 Log.i(
-                    "$TAG Current call media encryption is ZRTP, auth token is ${if (deviceIsTrusted) "trusted" else "not trusted yet"}"
+                    "$TAG Current call media encryption is ZRTP, auth token is ${if (isDeviceTrusted) "trusted" else "not trusted yet"}"
                 )
-                isRemoteDeviceTrusted.postValue(deviceIsTrusted)
-                contact.value?.showTrust?.postValue(deviceIsTrusted)
+                isRemoteDeviceTrusted.postValue(isDeviceTrusted)
+                val securityLevel = if (isDeviceTrusted) SecurityLevel.Encrypted else SecurityLevel.Safe
+                contact.value?.trust?.postValue(securityLevel)
 
-                if (!deviceIsTrusted && authToken.orEmpty().isNotEmpty()) {
+                if (!isDeviceTrusted && authToken.orEmpty().isNotEmpty()) {
                     Log.i("$TAG Showing ZRTP SAS confirmation dialog")
                     showZrtpSasDialog(authToken!!.uppercase(Locale.getDefault()))
                 }
 
-                return deviceIsTrusted
+                return isDeviceTrusted
             }
             MediaEncryption.SRTP, MediaEncryption.DTLS -> {
             }
@@ -614,18 +616,19 @@ class CurrentCallViewModel @UiThread constructor() : ViewModel() {
         displayedAddress.postValue(address.asStringUriOnly())
 
         val isDeviceTrusted = updateEncryption()
+        val securityLevel = if (isDeviceTrusted) SecurityLevel.Encrypted else SecurityLevel.Safe
         val friend = coreContext.contactsManager.findContactByAddress(address)
         if (friend != null) {
             displayedName.postValue(friend.name)
             val model = ContactAvatarModel(friend)
-            model.showTrust.postValue(isDeviceTrusted)
+            model.trust.postValue(securityLevel)
             contact.postValue(model)
         } else {
             val fakeFriend = coreContext.core.createFriend()
             fakeFriend.name = LinphoneUtils.getDisplayName(address)
             fakeFriend.addAddress(address)
             val model = ContactAvatarModel(fakeFriend)
-            model.showTrust.postValue(isDeviceTrusted)
+            model.trust.postValue(securityLevel)
             contact.postValue(model)
             displayedName.postValue(fakeFriend.name)
         }
diff --git a/app/src/main/java/org/linphone/ui/main/contacts/model/ContactAvatarModel.kt b/app/src/main/java/org/linphone/ui/main/contacts/model/ContactAvatarModel.kt
index 0b93c78bd..51cf018ee 100644
--- a/app/src/main/java/org/linphone/ui/main/contacts/model/ContactAvatarModel.kt
+++ b/app/src/main/java/org/linphone/ui/main/contacts/model/ContactAvatarModel.kt
@@ -25,6 +25,7 @@ import android.provider.ContactsContract
 import androidx.annotation.WorkerThread
 import androidx.lifecycle.MutableLiveData
 import org.linphone.R
+import org.linphone.core.ChatRoom.SecurityLevel
 import org.linphone.core.ConsolidatedPresence
 import org.linphone.core.Friend
 import org.linphone.core.FriendListenerStub
@@ -55,7 +56,7 @@ class ContactAvatarModel @WorkerThread constructor(val friend: Friend) {
 
     val firstContactStartingByThatLetter = MutableLiveData<Boolean>()
 
-    val showTrust = MutableLiveData<Boolean>()
+    val trust = MutableLiveData<SecurityLevel>()
 
     private val friendListener = object : FriendListenerStub() {
         @WorkerThread
@@ -70,6 +71,8 @@ class ContactAvatarModel @WorkerThread constructor(val friend: Friend) {
     init {
         friend.addListener(friendListener)
 
+        trust.postValue(SecurityLevel.Safe) // TODO FIXME: use API
+
         name.postValue(friend.name)
         computePresence()
         avatar.postValue(getAvatarUri())
diff --git a/app/src/main/java/org/linphone/utils/DataBindingUtils.kt b/app/src/main/java/org/linphone/utils/DataBindingUtils.kt
index 66e164dcc..ae8f858bc 100644
--- a/app/src/main/java/org/linphone/utils/DataBindingUtils.kt
+++ b/app/src/main/java/org/linphone/utils/DataBindingUtils.kt
@@ -53,6 +53,7 @@ import io.getstream.avatarview.AvatarView
 import io.getstream.avatarview.coil.loadImage
 import org.linphone.BR
 import org.linphone.R
+import org.linphone.core.ChatRoom
 import org.linphone.core.ConsolidatedPresence
 import org.linphone.core.tools.Log
 import org.linphone.ui.main.contacts.model.ContactAvatarModel
@@ -306,13 +307,22 @@ fun AvatarView.loadContactAvatar(contact: ContactAvatarModel?) {
                     avatarInitials = initials
                 }
 
-                if (contact.showTrust.value == true) {
-                    avatarBorderColor =
-                        resources.getColor(R.color.blue_info_500, context.theme)
-                    avatarBorderWidth =
-                        AppUtils.getDimension(R.dimen.avatar_trust_border_width).toInt()
-                } else {
-                    avatarBorderWidth = AppUtils.getDimension(R.dimen.zero).toInt()
+                when (contact.trust.value) {
+                    ChatRoom.SecurityLevel.Unsafe -> {
+                        avatarBorderColor =
+                            resources.getColor(R.color.red_danger_500, context.theme)
+                        avatarBorderWidth =
+                            AppUtils.getDimension(R.dimen.avatar_trust_border_width).toInt()
+                    }
+                    ChatRoom.SecurityLevel.Encrypted -> {
+                        avatarBorderColor =
+                            resources.getColor(R.color.blue_info_500, context.theme)
+                        avatarBorderWidth =
+                            AppUtils.getDimension(R.dimen.avatar_trust_border_width).toInt()
+                    }
+                    else -> {
+                        avatarBorderWidth = AppUtils.getDimension(R.dimen.zero).toInt()
+                    }
                 }
             },
             onSuccess = { _, _ ->
diff --git a/app/src/main/res/drawable/not_trusted.xml b/app/src/main/res/drawable/not_trusted.xml
new file mode 100644
index 000000000..456af5f53
--- /dev/null
+++ b/app/src/main/res/drawable/not_trusted.xml
@@ -0,0 +1,23 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="11dp"
+    android:height="10dp"
+    android:viewportWidth="11"
+    android:viewportHeight="10">
+  <path
+      android:pathData="M1.019,5a4.231,4.231 0,1 0,8.462 0a4.231,4.231 0,1 0,-8.462 0z"
+      android:fillColor="#DD5F5F"/>
+  <group>
+    <clip-path
+        android:pathData="M0.25,0h10v10h-10z"/>
+    <path
+        android:pathData="M5.25,2.917C5.48,2.917 5.667,3.103 5.667,3.333V5C5.667,5.23 5.48,5.417 5.25,5.417C5.02,5.417 4.833,5.23 4.833,5V3.333C4.833,3.103 5.02,2.917 5.25,2.917Z"
+        android:fillColor="#364860"/>
+    <path
+        android:pathData="M5.25,6.25C5.02,6.25 4.833,6.437 4.833,6.667C4.833,6.897 5.02,7.083 5.25,7.083H5.254C5.484,7.083 5.671,6.897 5.671,6.667C5.671,6.437 5.484,6.25 5.254,6.25H5.25Z"
+        android:fillColor="#364860"/>
+    <path
+        android:pathData="M3.23,0.539C3.308,0.461 3.414,0.417 3.525,0.417H6.975C7.085,0.417 7.191,0.461 7.27,0.539L9.711,2.98C9.789,3.059 9.833,3.164 9.833,3.275V6.725C9.833,6.835 9.789,6.941 9.711,7.02L7.27,9.461C7.191,9.539 7.085,9.583 6.975,9.583H3.525C3.414,9.583 3.308,9.539 3.23,9.461L0.789,7.02C0.711,6.941 0.667,6.835 0.667,6.725V3.275C0.667,3.164 0.711,3.059 0.789,2.98L3.23,0.539ZM3.698,1.25L1.5,3.448V6.552L3.698,8.75H6.802L9,6.552V3.448L6.802,1.25H3.698Z"
+        android:fillColor="#364860"
+        android:fillType="evenOdd"/>
+  </group>
+</vector>
diff --git a/app/src/main/res/layout/call_active_fragment.xml b/app/src/main/res/layout/call_active_fragment.xml
index c37a73d13..f000cea8c 100644
--- a/app/src/main/res/layout/call_active_fragment.xml
+++ b/app/src/main/res/layout/call_active_fragment.xml
@@ -5,6 +5,7 @@
 
     <data>
         <import type="android.view.View" />
+        <import type="org.linphone.core.ChatRoom.SecurityLevel" />
         <variable
             name="transferClickListener"
             type="View.OnClickListener" />
@@ -90,8 +91,8 @@
                 android:id="@+id/trust_badge"
                 android:layout_width="@dimen/avatar_presence_badge_in_call_size"
                 android:layout_height="@dimen/avatar_presence_badge_in_call_size"
-                android:src="@drawable/trusted"
-                android:visibility="@{viewModel.contact.showTrust ? View.VISIBLE : View.GONE}"
+                android:src="@{viewModel.contact.trust == SecurityLevel.Encrypted ? @drawable/trusted : @drawable/not_trusted, default=@drawable/trusted}"
+                android:visibility="@{viewModel.contact.trust == SecurityLevel.Encrypted || viewModel.contact.trust == SecurityLevel.Unsafe ? View.VISIBLE : View.GONE}"
                 app:layout_constraintStart_toStartOf="@id/avatar"
                 app:layout_constraintBottom_toBottomOf="@id/avatar"/>
 
diff --git a/app/src/main/res/layout/contact_favourite_list_cell.xml b/app/src/main/res/layout/contact_favourite_list_cell.xml
index 436b20877..2061436e4 100644
--- a/app/src/main/res/layout/contact_favourite_list_cell.xml
+++ b/app/src/main/res/layout/contact_favourite_list_cell.xml
@@ -6,6 +6,7 @@
     <data>
         <import type="android.view.View" />
         <import type="org.linphone.core.ConsolidatedPresence" />
+        <import type="org.linphone.core.ChatRoom.SecurityLevel" />
         <variable
             name="model"
             type="org.linphone.ui.main.contacts.model.ContactAvatarModel" />
@@ -55,6 +56,15 @@
             app:layout_constraintEnd_toEndOf="@id/avatar"
             app:layout_constraintBottom_toBottomOf="@id/avatar"/>
 
+        <ImageView
+            android:id="@+id/trust_badge"
+            android:layout_width="@dimen/avatar_presence_badge_size"
+            android:layout_height="@dimen/avatar_presence_badge_size"
+            android:src="@{model.trust == SecurityLevel.Encrypted ? @drawable/trusted : @drawable/not_trusted, default=@drawable/trusted}"
+            android:visibility="@{model.trust == SecurityLevel.Encrypted || model.trust == SecurityLevel.Unsafe ? View.VISIBLE : View.GONE}"
+            app:layout_constraintStart_toStartOf="@id/avatar"
+            app:layout_constraintBottom_toBottomOf="@id/avatar"/>
+
         <androidx.appcompat.widget.AppCompatTextView
             style="@style/default_text_style"
             android:id="@+id/name"
diff --git a/app/src/main/res/layout/contact_fragment.xml b/app/src/main/res/layout/contact_fragment.xml
index 97b2cb27f..c339217cd 100644
--- a/app/src/main/res/layout/contact_fragment.xml
+++ b/app/src/main/res/layout/contact_fragment.xml
@@ -5,6 +5,7 @@
     <data>
         <import type="android.view.View" />
         <import type="org.linphone.core.ConsolidatedPresence" />
+        <import type="org.linphone.core.ChatRoom.SecurityLevel" />
         <variable
             name="backClickListener"
             type="View.OnClickListener" />
@@ -125,6 +126,15 @@
                     app:layout_constraintEnd_toEndOf="@id/avatar"
                     app:layout_constraintBottom_toBottomOf="@id/avatar"/>
 
+                <ImageView
+                    android:id="@+id/trust_badge"
+                    android:layout_width="@dimen/avatar_presence_badge_in_call_size"
+                    android:layout_height="@dimen/avatar_presence_badge_in_call_size"
+                    android:src="@{viewModel.contact.trust == SecurityLevel.Encrypted ? @drawable/trusted : @drawable/not_trusted, default=@drawable/trusted}"
+                    android:visibility="@{viewModel.contact.trust == SecurityLevel.Encrypted || viewModel.contact.trust == SecurityLevel.Unsafe ? View.VISIBLE : View.GONE}"
+                    app:layout_constraintStart_toStartOf="@id/avatar"
+                    app:layout_constraintBottom_toBottomOf="@id/avatar"/>
+
                 <androidx.appcompat.widget.AppCompatTextView
                     style="@style/default_text_style"
                     android:id="@+id/name"
diff --git a/app/src/main/res/layout/contact_list_cell.xml b/app/src/main/res/layout/contact_list_cell.xml
index d652298be..566b70670 100644
--- a/app/src/main/res/layout/contact_list_cell.xml
+++ b/app/src/main/res/layout/contact_list_cell.xml
@@ -7,6 +7,7 @@
         <import type="android.view.View" />
         <import type="android.graphics.Typeface" />
         <import type="org.linphone.core.ConsolidatedPresence" />
+        <import type="org.linphone.core.ChatRoom.SecurityLevel" />
         <variable
             name="model"
             type="org.linphone.ui.main.contacts.model.ContactAvatarModel" />
@@ -84,6 +85,15 @@
             app:layout_constraintEnd_toEndOf="@id/avatar"
             app:layout_constraintBottom_toBottomOf="@id/avatar"/>
 
+        <ImageView
+            android:id="@+id/trust_badge"
+            android:layout_width="@dimen/avatar_presence_badge_size"
+            android:layout_height="@dimen/avatar_presence_badge_size"
+            android:src="@{model.trust == SecurityLevel.Encrypted ? @drawable/trusted : @drawable/not_trusted, default=@drawable/trusted}"
+            android:visibility="@{model.trust == SecurityLevel.Encrypted || model.trust == SecurityLevel.Unsafe ? View.VISIBLE : View.GONE}"
+            app:layout_constraintStart_toStartOf="@id/avatar"
+            app:layout_constraintBottom_toBottomOf="@id/avatar"/>
+
         <androidx.appcompat.widget.AppCompatTextView
             style="@style/default_text_style"
             android:id="@+id/name"
diff --git a/app/src/main/res/layout/history_contact_fragment.xml b/app/src/main/res/layout/history_contact_fragment.xml
index a2299451f..dca0bce5d 100644
--- a/app/src/main/res/layout/history_contact_fragment.xml
+++ b/app/src/main/res/layout/history_contact_fragment.xml
@@ -5,6 +5,7 @@
     <data>
         <import type="android.view.View" />
         <import type="org.linphone.core.ConsolidatedPresence" />
+        <import type="org.linphone.core.ChatRoom.SecurityLevel" />
         <variable
             name="backClickListener"
             type="View.OnClickListener" />
@@ -99,6 +100,15 @@
             app:layout_constraintEnd_toEndOf="@id/avatar"
             app:layout_constraintBottom_toBottomOf="@id/avatar"/>
 
+        <ImageView
+            android:id="@+id/trust_badge"
+            android:layout_width="@dimen/avatar_presence_badge_in_call_size"
+            android:layout_height="@dimen/avatar_presence_badge_in_call_size"
+            android:src="@{viewModel.callLogModel.avatarModel.trust == SecurityLevel.Encrypted ? @drawable/trusted : @drawable/not_trusted, default=@drawable/trusted}"
+            android:visibility="@{viewModel.callLogModel.avatarModel.trust == SecurityLevel.Encrypted || viewModel.callLogModel.avatarModel.trust == SecurityLevel.Unsafe ? View.VISIBLE : View.GONE}"
+            app:layout_constraintStart_toStartOf="@id/avatar"
+            app:layout_constraintBottom_toBottomOf="@id/avatar"/>
+
         <androidx.appcompat.widget.AppCompatTextView
             style="@style/default_text_style"
             android:id="@+id/name"
diff --git a/app/src/main/res/layout/history_list_cell.xml b/app/src/main/res/layout/history_list_cell.xml
index 12ca2b3dc..99b5a10f0 100644
--- a/app/src/main/res/layout/history_list_cell.xml
+++ b/app/src/main/res/layout/history_list_cell.xml
@@ -7,6 +7,7 @@
         <import type="android.view.View" />
         <import type="android.graphics.Typeface" />
         <import type="org.linphone.core.ConsolidatedPresence" />
+        <import type="org.linphone.core.ChatRoom.SecurityLevel" />
         <variable
             name="model"
             type="org.linphone.ui.main.history.model.CallLogModel" />
@@ -61,6 +62,15 @@
             app:layout_constraintEnd_toEndOf="@id/avatar"
             app:layout_constraintBottom_toBottomOf="@id/avatar"/>
 
+        <ImageView
+            android:id="@+id/trust_badge"
+            android:layout_width="@dimen/avatar_presence_badge_size"
+            android:layout_height="@dimen/avatar_presence_badge_size"
+            android:src="@{model.avatarModel.trust == SecurityLevel.Encrypted ? @drawable/trusted : @drawable/not_trusted, default=@drawable/trusted}"
+            android:visibility="@{model.avatarModel.trust == SecurityLevel.Encrypted || model.avatarModel.trust == SecurityLevel.Unsafe ? View.VISIBLE : View.GONE}"
+            app:layout_constraintStart_toStartOf="@id/avatar"
+            app:layout_constraintBottom_toBottomOf="@id/avatar"/>
+
         <androidx.appcompat.widget.AppCompatTextView
             style="@style/default_text_style"
             android:id="@+id/name"