Microsoft clarified on its Learn website that number matching is a crucial security enhancement for traditional second-factor notifications in the Authenticator app. The company plans to enforce this feature across its user base starting from May 8, 2023, removing the administrative controls associated with it. While some services will automatically adopt number matching, others may not. However, Microsoft allows users to manually enable the feature by navigating to the Azure portal and adjusting the settings under Security > Authentication methods > Microsoft Authenticator.
Users can choose the target audience for the new feature by specifying the authentication mode and enabling number matching for push notifications. Microsoft also provides guidance on leveraging Graph APIs to enable number matching for specific user groups.
