diff --git a/CHANGES.md b/CHANGES.md
index 2f18920b0a..0b9d8d5991 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -8,6 +8,7 @@ Features ✨:
 Improvements 🙌:
  - Verification DM / Handle concurrent .start after .ready (#794)
  - CrossSigning / Update Shield Logic for DM (#963)
+ - Xsigning | Complete security new session design update (#1135)
 
 Bugfix 🐛:
  - Missing avatar/displayname after verification request message (#841)
diff --git a/vector/src/main/java/im/vector/riotx/features/crypto/verification/VerificationBottomSheetViewModel.kt b/vector/src/main/java/im/vector/riotx/features/crypto/verification/VerificationBottomSheetViewModel.kt
index 731f12cca4..c37bba1469 100644
--- a/vector/src/main/java/im/vector/riotx/features/crypto/verification/VerificationBottomSheetViewModel.kt
+++ b/vector/src/main/java/im/vector/riotx/features/crypto/verification/VerificationBottomSheetViewModel.kt
@@ -69,7 +69,7 @@ data class VerificationBottomSheetViewState(
 
 class VerificationBottomSheetViewModel @AssistedInject constructor(
         @Assisted initialState: VerificationBottomSheetViewState,
-        @Assisted args: VerificationBottomSheet.VerificationArgs,
+        @Assisted val args: VerificationBottomSheet.VerificationArgs,
         private val session: Session,
         private val supportedVerificationMethodsProvider: SupportedVerificationMethodsProvider)
     : VectorViewModel<VerificationBottomSheetViewState, VerificationAction, VerificationBottomSheetViewEvents>(initialState),
@@ -142,14 +142,19 @@ class VerificationBottomSheetViewModel @AssistedInject constructor(
                    args: VerificationBottomSheet.VerificationArgs): VerificationBottomSheetViewModel
     }
 
-    fun queryCancel() = withState {
-        if (it.userThinkItsNotHim) {
+    fun queryCancel() = withState { state ->
+        if (state.userThinkItsNotHim) {
             setState {
                 copy(userThinkItsNotHim = false)
             }
         } else {
-            setState {
-                copy(userWantsToCancel = true)
+            // if the verification is already done you can't cancel anymore
+            if (state.pendingRequest.invoke()?.cancelConclusion != null || state.sasTransactionState is VerificationTxState.TerminalTxState) {
+                // you cannot cancel anymore
+            } else {
+                setState {
+                    copy(userWantsToCancel = true)
+                }
             }
         }
     }
@@ -447,7 +452,10 @@ class VerificationBottomSheetViewModel @AssistedInject constructor(
                 || pr.localId == state.pendingRequest.invoke()?.localId
                 || state.pendingRequest.invoke()?.transactionId == pr.transactionId) {
             setState {
-                copy(pendingRequest = Success(pr))
+                copy(
+                        transactionId = args.verificationId ?: pr.transactionId,
+                        pendingRequest = Success(pr)
+                )
             }
         }
     }
diff --git a/vector/src/main/java/im/vector/riotx/features/crypto/verification/cancel/VerificationCancelController.kt b/vector/src/main/java/im/vector/riotx/features/crypto/verification/cancel/VerificationCancelController.kt
index 1beea4ae9f..49b2f7dce1 100644
--- a/vector/src/main/java/im/vector/riotx/features/crypto/verification/cancel/VerificationCancelController.kt
+++ b/vector/src/main/java/im/vector/riotx/features/crypto/verification/cancel/VerificationCancelController.kt
@@ -16,11 +16,13 @@
 
 package im.vector.riotx.features.crypto.verification.cancel
 
+import androidx.core.text.toSpannable
 import com.airbnb.epoxy.EpoxyController
 import im.vector.riotx.R
 import im.vector.riotx.core.epoxy.dividerItem
 import im.vector.riotx.core.resources.ColorProvider
 import im.vector.riotx.core.resources.StringProvider
+import im.vector.riotx.core.utils.colorizeMatchingText
 import im.vector.riotx.features.crypto.verification.VerificationBottomSheetViewState
 import im.vector.riotx.features.crypto.verification.epoxy.bottomSheetVerificationActionItem
 import im.vector.riotx.features.crypto.verification.epoxy.bottomSheetVerificationNoticeItem
@@ -56,9 +58,15 @@ class VerificationCancelController @Inject constructor(
                 }
             }
         } else {
+            val otherUserID = state.otherUserMxItem?.id ?: ""
+            val otherDisplayName = state.otherUserMxItem?.displayName ?: ""
             bottomSheetVerificationNoticeItem {
                 id("notice")
-                notice(stringProvider.getString(R.string.verify_cancel_self_verification_from_untrusted))
+                notice(
+                        stringProvider.getString(R.string.verify_cancel_other, otherDisplayName, otherUserID)
+                                .toSpannable()
+                                .colorizeMatchingText(otherUserID, colorProvider.getColorFromAttribute(R.attr.vctr_notice_text_color))
+                )
             }
         }
 
diff --git a/vector/src/main/java/im/vector/riotx/features/crypto/verification/request/VerificationRequestController.kt b/vector/src/main/java/im/vector/riotx/features/crypto/verification/request/VerificationRequestController.kt
index 60d0d86aeb..56c76bc2b0 100644
--- a/vector/src/main/java/im/vector/riotx/features/crypto/verification/request/VerificationRequestController.kt
+++ b/vector/src/main/java/im/vector/riotx/features/crypto/verification/request/VerificationRequestController.kt
@@ -74,15 +74,6 @@ class VerificationRequestController @Inject constructor(
                 iconColor(colorProvider.getColorFromAttribute(R.attr.riotx_text_primary))
                 listener { listener?.onClickRecoverFromPassphrase() }
             }
-            bottomSheetVerificationActionItem {
-                id("skip")
-                title(stringProvider.getString(R.string.skip))
-                titleColor(colorProvider.getColor(R.color.riotx_destructive_accent))
-//                subTitle(stringProvider.getString(R.string.verification_use_passphrase))
-                iconRes(R.drawable.ic_arrow_right)
-                iconColor(colorProvider.getColor(R.color.riotx_destructive_accent))
-                listener { listener?.onClickDismiss() }
-            }
         } else {
             val styledText =
                     if (state.isMe) {
diff --git a/vector/src/main/java/im/vector/riotx/features/home/HomeActivity.kt b/vector/src/main/java/im/vector/riotx/features/home/HomeActivity.kt
index 0fa3e5416d..b814fd9410 100644
--- a/vector/src/main/java/im/vector/riotx/features/home/HomeActivity.kt
+++ b/vector/src/main/java/im/vector/riotx/features/home/HomeActivity.kt
@@ -29,6 +29,7 @@ import androidx.drawerlayout.widget.DrawerLayout
 import androidx.lifecycle.Observer
 import im.vector.matrix.android.api.MatrixCallback
 import im.vector.matrix.android.api.session.Session
+import im.vector.matrix.android.api.util.toMatrixItem
 import im.vector.matrix.android.internal.crypto.model.CryptoDeviceInfo
 import im.vector.matrix.android.internal.crypto.model.MXUsersDevicesMap
 import im.vector.riotx.R
@@ -41,8 +42,8 @@ import im.vector.riotx.core.platform.VectorBaseActivity
 import im.vector.riotx.core.pushers.PushersManager
 import im.vector.riotx.features.disclaimer.showDisclaimerDialog
 import im.vector.riotx.features.notifications.NotificationDrawerManager
-import im.vector.riotx.features.popup.DefaultVectorAlert
 import im.vector.riotx.features.popup.PopupAlertManager
+import im.vector.riotx.features.popup.VerificationVectorAlert
 import im.vector.riotx.features.rageshake.VectorUncaughtExceptionHandler
 import im.vector.riotx.features.settings.VectorPreferences
 import im.vector.riotx.features.workers.signout.SignOutViewModel
@@ -126,6 +127,12 @@ class HomeActivity : VectorBaseActivity(), ToolbarConfigurable {
                 waiting_view.isVisible = true
             }
         })
+
+        // Ask again if the app is relaunched
+        if (!sharedActionViewModel.hasDisplayedCompleteSecurityPrompt
+                && activeSessionHolder.getSafeActiveSession()?.hasAlreadySynced() == true) {
+            promptCompleteSecurityIfNeeded()
+        }
     }
 
     private fun promptCompleteSecurityIfNeeded() {
@@ -152,13 +159,14 @@ class HomeActivity : VectorBaseActivity(), ToolbarConfigurable {
             // We need to ask
             sharedActionViewModel.hasDisplayedCompleteSecurityPrompt = true
             popupAlertManager.postVectorAlert(
-                    DefaultVectorAlert(
+                    VerificationVectorAlert(
                             uid = "completeSecurity",
-                            title = getString(R.string.new_signin),
-                            description = getString(R.string.complete_security),
+                            title = getString(R.string.complete_security),
+                            description = getString(R.string.crosssigning_verify_this_session),
                             iconId = R.drawable.ic_shield_warning
                     ).apply {
-                        colorInt = ContextCompat.getColor(this@HomeActivity, R.color.riotx_destructive_accent)
+                        matrixItem = session.getUser(session.myUserId)?.toMatrixItem()
+                        colorInt = ContextCompat.getColor(this@HomeActivity, R.color.riotx_positive_accent)
                         contentAction = Runnable {
                             (weakCurrentActivity?.get() as? VectorBaseActivity)?.let {
                                 it.navigator.waitSessionVerification(it)
diff --git a/vector/src/main/res/values/strings.xml b/vector/src/main/res/values/strings.xml
index 9e07f43cb8..928aafbd55 100644
--- a/vector/src/main/res/values/strings.xml
+++ b/vector/src/main/res/values/strings.xml
@@ -2126,7 +2126,7 @@ Not all features in Riot are implemented in RiotX yet. Main missing (and coming
     <string name="crosssigning_other_user_not_trust">Other users may not trust it</string>
     <string name="complete_security">Complete Security</string>
 
-    <string name="verification_open_other_to_verify">Open an existing session &amp; use it to verify this one, granting it access to encrypted messages.</string>
+    <string name="verification_open_other_to_verify">Use an existing session to verify this one, granting it access to encrypted messages.</string>
 
 
     <string name="verification_profile_verify">Verify</string>
@@ -2166,8 +2166,8 @@ Not all features in Riot are implemented in RiotX yet. Main missing (and coming
     </plurals>
     <string name="poll_item_selected_aria">Selected Option</string>
     <string name="command_description_poll">Creates a simple poll</string>
-    <string name="verification_cannot_access_other_session">Can‘t access an existing session?</string>
-    <string name="verification_use_passphrase">Use your recovery key or passphrase</string>
+    <string name="verification_cannot_access_other_session">Use a recovery method</string>
+    <string name="verification_use_passphrase">If you can’t access an existing session</string>
 
     <string name="new_signin">New Sign In</string>
 
diff --git a/vector/src/main/res/values/strings_riotX.xml b/vector/src/main/res/values/strings_riotX.xml
index de28f316fa..ccb4bfa9be 100644
--- a/vector/src/main/res/values/strings_riotX.xml
+++ b/vector/src/main/res/values/strings_riotX.xml
@@ -23,6 +23,7 @@
 
     <string name="verify_cancel_self_verification_from_untrusted">If you cancel, you won’t be able to read encrypted messages on this device, and other users won’t trust it</string>
     <string name="verify_cancel_self_verification_from_trusted">If you cancel, you won’t be able to read encrypted messages on your new device, and other users won’t trust it</string>
+    <string name="verify_cancel_other">You won’t verify %1$s (%2$s) if you cancel now. Start again in their user profile.</string>
 
     <string name="verify_not_me_self_verification">
         One of the following may be compromised:\n\n- Your password\n- Your homeserver\n- This device, or the other device\n- The internet connection either device is using\n\nWe recommend you change your password &amp; recovery key in Settings immediately.