Enable Authenticator Passkey
In brief
The documentation now states that iOS cross-device registration does not support attestation, while Android does. Attested passkeys can also be registered through Android cross-device flows.
What Entra admins need to know
Administrators should communicate the platform-specific registration behavior to users.
This editorial summary was generated by AI from the documentation changes. Verify important details in the full Microsoft Learn article.
Documentation change
The comparison below shows only the changed extract. Use the full-page view for complete context.
To learn more about FIDO2 support, see Support for FIDO2 authentication with Microsoft Entra ID.
UsersOn iOS, users can only register attested passkeys directly in the Authenticator app. Cross-On Android, users can also register attested passkeys by using a cross-device registration flows don't support registration of attested passkeys.flow.
Authenticator AAGUIDs
@@ -32,7 +32,7 @@ Before you follow the steps in this article, enable passkeys and create a passke iOS | `cable.auth.com`<br>`app-site-association.cdn-apple.com`<br>`app-site-association.networking.apple` > [!NOTE]- > Users can't use cross-device registration if you enable attestation. + > On iOS, users can't use cross-device registration if you enable attestation. On Android, cross-device registration supports attestation. To learn more about FIDO2 support, see [Support for FIDO2 authentication with Microsoft Entra ID](concept-fido2-compatibility.md). @@ -88,7 +88,7 @@ When attestation is enabled, Microsoft Entra ID verifies the legitimacy of the p > [!NOTE] > For both iOS and Android, Authenticator attestation relies upon Apple and Google services to verify the authenticity of the Authenticator app. Heavy service usage can make passkey registration fail, and users might need to try again. If Apple and Google services are down, Authenticator attestation blocks registration that requires attestation until services are restored. To monitor the status of Google Play Integrity service, see [Google Play Status Dashboard](https://status.play.google.com/). To monitor the status of the iOS App Attest service, see [System Status](https://developer.apple.com/system-status/). -Users can only register attested passkeys directly in the Authenticator app. Cross-device registration flows don't support registration of attested passkeys.+On iOS, users can only register attested passkeys directly in the Authenticator app. On Android, users can also register attested passkeys by using a cross-device registration flow. ## Authenticator AAGUIDs 