Locked out due to MFA / can’t access Authenticator”

If you are locked out due to Multi-Factor Authentication (MFA) and cannot access the Microsoft Authenticator app, you can follow these steps to regain access:

1. Contact Microsoft Support: If you are the only administrator for your account, you can try reaching out to Microsoft Data Protection Support by phone. Explain your situation and request a reset of your authentication method. This is the primary method for account recovery.
2. Create a Temporary Account: If you cannot reach a live agent, consider signing up for a trial subscription to create a new tenant. This will allow you to access the admin console of the new tenant and submit a support ticket requesting assistance for your previous tenant.
3. Check for Other Admins: If there are other admins in your organization who are not locked out, they can disable the policy affecting your sign-in.
4. Submit a Support Request: If no admin can help, you may need to submit a support request to Microsoft for assistance in updating the Conditional Access policies that are preventing access.

These steps should help you regain access to your account and resolve the MFA issues you are experiencing.

References:

• Troubleshoot sign-in problems with Conditional Access
• Requesting a Tenant Admin MFA Reset - Microsoft Q&A