stolen phone, authenticator issue

JUAN FELIPE 0 Reputation points
2026-05-14T21:46:48.5266667+00:00

As you can read, my phone got stolen and authenticator still has it as mine, so all codes get end at it. I need to reopen my accounts and I dont know how to mark it as it isnt mine cause all the things that i try to open requires a code.

Microsoft Security | Microsoft Authenticator
0 comments

1 answer

Sort by: Most helpful
Most helpful Newest Oldest

  1. AI answer

    2026-05-14T21:47:02.0833333+00:00

    Because the phone with Microsoft Authenticator was stolen and all sign-ins now require a code, recovery depends on what other security methods or admins are available.

    1. If this is a work or school (Entra ID / Microsoft 365) account and there is another admin
      • Ask a Global Administrator in the tenant to reset MFA for the account:
        1. Admin signs in to the Azure portal and opens Microsoft Entra ID.
        2. Go to Users → select the affected user.
        3. Open Authentication methods.
        4. Select Require re-register multifactor authentication.
      • Next sign-in will prompt to set up new MFA methods (new Authenticator app, phone, etc.) on the new device.
    2. If this is a work or school account and there is no other Global Admin
      • This is a tenant lockout scenario. The documented resolution is to work with Microsoft Support / Data Protection:
        • Contact Microsoft support (Global Customer Service phone) and clearly state:
          • This is a company / work account.
          • MFA is enabled and the only method was Microsoft Authenticator on a stolen phone.
          • There is no other global admin in the tenant.
          • A Data Protection / Tenant Recovery case is needed to reset MFA registration.
        • Support will route the case to the Data Protection team, who will verify ownership and help reset MFA so access can be restored.
    3. If this is a personal Microsoft account (Outlook/Hotmail/Live)
      • When prompted for a verification code and none of the listed methods are accessible, choose “I don’t have any of these” and follow the prompts to:
        • Update backup security info, or
        • Complete the account recovery process using the recovery form.
      • If codes are not arriving to backup methods that still belong to the user, check:
        • Junk folder for mail from @accountprotection.microsoft.com.
        • That the phone number/email shown (partially masked) is actually correct.
    4. If the stolen phone was the only security method everywhere
      • For work/school: only an admin MFA reset or a Data Protection / Tenant Recovery case can restore access.
      • For personal accounts: only completing the recovery flow after selecting “I don’t have any of these” can restore access.

    In all cases, after access is restored on a new device:

    • Add multiple MFA methods (Authenticator on new phone, SMS, email, security key) so a single lost device does not lock out the account again.
    • If the device was used for work, notify the organization’s help desk so they can clear old MFA settings and take any additional security actions.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

    Was this answer helpful?

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.