Help with log in

Question

I need to get into my authenticator account, but it’s tied to my old phone number that I no longer have access to and I can’t login at all to change it

Answer 1

If you are unable to access your Microsoft Authenticator account because it is tied to an old phone number, you will need to reset your Multi-Factor Authentication (MFA) settings. Here are the steps you can follow:

1. Contact your organization's admin: If you are part of an organization, reach out to your Global Admins. They can require you to re-register for MFA, allowing you to set up your authentication methods again.
2. Admin Reset: If you are the admin, you can reset your MFA settings by signing into the Microsoft Entra Admin Center. Navigate to Users > All Users, select your user account, go to Authentication Methods, and click "Require re-register multifactor authentication". This will prompt you to set up the Authenticator app again using a QR code the next time you sign in.
3. Microsoft Support: If you are the only admin and cannot access your account, you may need to contact Microsoft support for assistance. They have processes in place to help verify your identity and regain access to your account.

These steps should help you regain access to your authenticator account and update your phone number for MFA.

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References:

• I need to reset my mfa methods - Microsoft Q&A
• Microsoft authenticator sending me into a spiral - Microsoft Q&A
• I have a Micrsoft business account and I am the admin and the only user registered under this account. I can't log in because i have replaced my phone and the authenticator doesn't work. - Microsoft Q&A
• Can't use Azure Multi-Factor Authentication to sign in to cloud services after you lose your phone or the phone number changes - Microsoft Support