Microsoft has announced that its Authenticator app will no longer be compatible with personal Microsoft accounts on Android devices starting January 2027.[7982867][7982846][7983023] The change will require users to have a Google One subscription to use the app for cloud-based backups.[7982867][7982846][7983023] The decision comes after a reported security vulnerability in the Authenticator app on Android devices.[7982867][7982846][7983023] Microsoft plans to continue supporting the app for personal accounts on iOS devices and other platforms.[7982867][7982846][7983023] The company is urging users to update their apps and subscriptions to ensure a smooth transition.[7982867][7982846][7983023]