locked out of my Microsoft Entra/Azure tenant because of a broken MFA registration

Vimukta Talwar 0 Reputation points
2026-09-11T03:45:20.5733333+00:00

I am locked out of my Microsoft Entra/Azure tenant because of a broken MFA registration. Azure Portal fails with AADSTS500121 and Microsoft Authenticator reports that it cannot find the account to complete MFA. I cannot access My Security Info to re-register MFA. I can successfully authenticate to the same tenant using Azure CLI/device-code authentication. Please help!

Microsoft Security | Microsoft Entra | Microsoft Entra ID
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