Microsoft Security | Microsoft Entra | Microsoft Entra ID
A cloud-based identity and access management service for securing user authentication and resource access
Tenant lockout: only Global Admin, lost MFA (Authenticator)
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Ferrecomsa_HN
5
Reputation points
Hi, I am unable to sign in to my Microsoft 365 tenant because my only MFA device (Microsoft Authenticator) is no longer available.
This tenant has only one Global Administrator account, which is mine, and it is protected by MFA using Microsoft Authenticator on a single mobile device. There are no other admin accounts and no alternative MFA methods configured.
The original MFA device is no longer available. Every sign-in to Microsoft 365 requires approval or a 6-digit code from the old Authenticator device, which I cannot provide.
As a result, I cannot access the admin center, Security info pages, Microsoft 365 services, or manage the tenant in any way.
I am stuck in a loop: I need MFA to sign in, but I need to sign in to fix MFA.
Any assistance in recovering administrative access to this tenant would be greatly appreciated. I am ready to provide any documentation necessary to verify identity and domain ownership.
Microsoft Security | Microsoft Entra | Microsoft Entra ID
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VEMULA SRISAI 13,985 Reputation points Microsoft External Staff Moderator2026-01-09T23:51:14.85+00:00 To assist you further and forward this to Microsoft’s Data Protection Team, we need some additional information. As this involves Personally Identifiable Information (PII), please share the following details with us in private message only (do not post publicly):
- Contact phone number (including country code)
- Email address (affected account)
- Contact Email Address
- Country
- Time zone
- Tenant Id
- Azure subscription ID
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VEMULA SRISAI 13,985 Reputation points Microsoft External Staff Moderator
2026-01-12T19:12:12.7366667+00:00 Ferrecomsa_HN could you please share the requested details in private message.
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Volkhard Vogeler 30 Reputation points2026-01-12T19:54:33.34+00:00 Hello @VEMULA SRISAI ,
i do have the same Problems - how can i send you a private message?
best regards
Volkhard -
VEMULA SRISAI 13,985 Reputation points Microsoft External Staff Moderator
2026-01-12T20:32:16.2533333+00:00 Volkhard Vogeler could you please post a new Question on this and tag me over.
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Miki Lahti 5 Reputation points2026-01-12T20:36:22.9566667+00:00 Hello I have the same problem but can't find a way to send you a private message? My Microsoft authenticator device is no longer available and I'm stuck in a loop.
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Volkhard Vogeler 30 Reputation points
2026-01-13T06:16:00.99+00:00 Hello @VEMULA SRISAI ,
thanks - this is the new question: https://learn.microsoft.com/en-us/answers/questions/5705902/mfa-lost-only-global-admin-locked-out
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