diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/CryptoManager.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/CryptoManager.kt
index 89aaa974d5..15e06bba34 100755
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/CryptoManager.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/CryptoManager.kt
@@ -37,6 +37,7 @@ import im.vector.matrix.android.api.session.events.model.toModel
 import im.vector.matrix.android.api.session.room.Room
 import im.vector.matrix.android.api.session.room.RoomService
 import im.vector.matrix.android.api.session.room.model.Membership
+import im.vector.matrix.android.internal.crypto.actions.SetDeviceVerificationAction
 import im.vector.matrix.android.internal.crypto.algorithms.IMXEncrypting
 import im.vector.matrix.android.internal.crypto.keysbackup.KeysBackup
 import im.vector.matrix.android.internal.crypto.model.*
@@ -95,6 +96,8 @@ internal class CryptoManager(
         private val mRoomService: RoomService,
         // Olm Manager
         private val mOlmManager: OlmManager,
+        // Actions
+        private val mSetDeviceVerificationAction: SetDeviceVerificationAction,
         // Tasks
         private val mClaimOneTimeKeysForUsersDeviceTask: ClaimOneTimeKeysForUsersDeviceTask,
         private val mDeleteDeviceTask: DeleteDeviceTask,
@@ -529,25 +532,7 @@ internal class CryptoManager(
      * @param callback           the asynchronous callback
      */
     override fun setDeviceVerification(verificationStatus: Int, deviceId: String, userId: String) {
-        val device = mCryptoStore.getUserDevice(deviceId, userId)
-
-        // Sanity check
-        if (null == device) {
-            Timber.w("## setDeviceVerification() : Unknown device $userId:$deviceId")
-            return
-        }
-
-        if (device.mVerified != verificationStatus) {
-            device.mVerified = verificationStatus
-            mCryptoStore.storeUserDevice(userId, device)
-
-            if (userId == mCredentials.userId) {
-                // If one of the user's own devices is being marked as verified / unverified,
-                // check the key backup status, since whether or not we use this depends on
-                // whether it has a signature from a verified device
-                mKeysBackup.checkAndStartKeysBackup()
-            }
-        }
+        mSetDeviceVerificationAction.handle(verificationStatus, deviceId, userId)
     }
 
     /**
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/CryptoModule.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/CryptoModule.kt
index 770c728f03..9093a5fe3f 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/CryptoModule.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/CryptoModule.kt
@@ -19,6 +19,7 @@ package im.vector.matrix.android.internal.crypto
 import android.content.Context
 import im.vector.matrix.android.api.auth.data.Credentials
 import im.vector.matrix.android.api.session.crypto.CryptoService
+import im.vector.matrix.android.internal.crypto.actions.SetDeviceVerificationAction
 import im.vector.matrix.android.internal.crypto.api.CryptoApi
 import im.vector.matrix.android.internal.crypto.keysbackup.KeysBackup
 import im.vector.matrix.android.internal.crypto.keysbackup.api.RoomKeysApi
@@ -107,6 +108,12 @@ internal class CryptoModule {
             OneTimeKeysManager(get(), get(), get(), get(), get())
         }
 
+        // Actions
+        scope(DefaultSession.SCOPE) {
+            SetDeviceVerificationAction(get(), get(), get())
+        }
+
+
         // CryptoManager
         scope(DefaultSession.SCOPE) {
             CryptoManager(
@@ -124,6 +131,8 @@ internal class CryptoModule {
                     get(),
                     get(),
                     get(),
+                    // Actions
+                    get(),
                     // Tasks
                     get(), get(), get(), get(), get(), get(), get(),
                     // Task executor
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/actions/SetDeviceVerificationAction.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/actions/SetDeviceVerificationAction.kt
new file mode 100644
index 0000000000..26f6b765ce
--- /dev/null
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/actions/SetDeviceVerificationAction.kt
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2019 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package im.vector.matrix.android.internal.crypto.actions
+
+import im.vector.matrix.android.api.auth.data.Credentials
+import im.vector.matrix.android.internal.crypto.keysbackup.KeysBackup
+import im.vector.matrix.android.internal.crypto.store.IMXCryptoStore
+import timber.log.Timber
+
+internal class SetDeviceVerificationAction(val mCryptoStore: IMXCryptoStore,
+                                          val mCredentials: Credentials,
+                                          val mKeysBackup: KeysBackup) {
+
+    fun handle(verificationStatus: Int, deviceId: String, userId: String) {
+        val device = mCryptoStore.getUserDevice(deviceId, userId)
+
+        // Sanity check
+        if (null == device) {
+            Timber.w("## setDeviceVerification() : Unknown device $userId:$deviceId")
+            return
+        }
+
+        if (device.mVerified != verificationStatus) {
+            device.mVerified = verificationStatus
+            mCryptoStore.storeUserDevice(userId, device)
+
+            if (userId == mCredentials.userId) {
+                // If one of the user's own devices is being marked as verified / unverified,
+                // check the key backup status, since whether or not we use this depends on
+                // whether it has a signature from a verified device
+                mKeysBackup.checkAndStartKeysBackup()
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/verification/DefaultSasVerificationService.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/verification/DefaultSasVerificationService.kt
index 85648b8413..0355c1126d 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/verification/DefaultSasVerificationService.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/verification/DefaultSasVerificationService.kt
@@ -29,6 +29,7 @@ import im.vector.matrix.android.api.session.events.model.EventType
 import im.vector.matrix.android.api.session.events.model.toModel
 import im.vector.matrix.android.internal.crypto.CryptoAsyncHelper
 import im.vector.matrix.android.internal.crypto.DeviceListManager
+import im.vector.matrix.android.internal.crypto.actions.SetDeviceVerificationAction
 import im.vector.matrix.android.internal.crypto.model.MXDeviceInfo
 import im.vector.matrix.android.internal.crypto.model.MXUsersDevicesMap
 import im.vector.matrix.android.internal.crypto.model.rest.*
@@ -48,6 +49,7 @@ import kotlin.collections.HashMap
 internal class DefaultSasVerificationService(private val mCredentials: Credentials,
                                              private val mCryptoStore: IMXCryptoStore,
                                              private val deviceListManager: DeviceListManager,
+                                             private val setDeviceVerificationAction: SetDeviceVerificationAction,
                                              private val mSendToDeviceTask: SendToDeviceTask,
                                              private val mTaskExecutor: TaskExecutor)
     : VerificationTransaction.Listener, SasVerificationService {
@@ -130,7 +132,7 @@ internal class DefaultSasVerificationService(private val mCredentials: Credentia
     }
 
     override fun markedLocallyAsManuallyVerified(userId: String, deviceID: String) {
-        mCryptoListener.setDeviceVerification(MXDeviceInfo.DEVICE_VERIFICATION_VERIFIED,
+        setDeviceVerificationAction.handle(MXDeviceInfo.DEVICE_VERIFICATION_VERIFIED,
                 deviceID,
                 userId)
 
@@ -427,12 +429,7 @@ internal class DefaultSasVerificationService(private val mCredentials: Credentia
         mCryptoListener = listener
     }
 
-    fun setDeviceVerification(verificationStatus: Int, deviceId: String, userId: String) {
-        mCryptoListener.setDeviceVerification(verificationStatus, deviceId, userId)
-    }
-
     interface SasCryptoListener {
-        fun setDeviceVerification(verificationStatus: Int, deviceId: String, userId: String)
         fun getMyDevice(): MXDeviceInfo
     }
 }
\ No newline at end of file