For the latest and most accurate information regarding how to back up and restore Microsoft Authenticator accounts, or to transfer Microsoft Authenticator from one mobile phone to another, please visit Microsoft's support website at https://support.microsoft.com/en-us/account-billing/back-up-and-recover-account-credentials-in-the-authenticator-app-bb939936-7a8d-4e88-bc43-49bc1a700a40.

IMPORTANT: Do not delete the Microsoft Authenticator app from your phone or replace your phone without either following the linked instructions above for setting up a backup of your Microsoft Authenticator credentials or setting up additional MFA methods (e.g., SMS text messaging). This will prevent you losing access to TTU services in the event that something unexpected happens to your phone, such as loss, damage, or theft.