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MFA & Verification Issues

How to Reset MFA for a Former Employee's Microsoft Account

Natalie TaylorNatalie Taylor Sep 27, 2026 869 views

Question details

An organization needs to regain access to a Microsoft account that is still linked to a former employee's personal phone for multi-factor authentication.

How to Reset MFA for a Former Employee's Microsoft Account
Product
Microsoft 365 / Entra ID
Device & OS
not provided
Scenario
Employee turnover and administrative account recovery
Observed behavior
The organization is blocked from logging into the account because the multi-factor authentication prompt is sent to a device they no longer control.
Before you start

Ensure you are logged in with an account that has Global Administrator, Privileged Authentication Administrator, or Authentication Administrator privileges in your Microsoft Entra ID environment.

Solution 1Recommended

Reset Authentication Methods via Microsoft Entra ID Admin Center

Use the administrative recovery process in Microsoft Entra ID to invalidate the former employee's device and force a new MFA registration.

Community moderators and Microsoft Support cannot bypass two-factor authentication for user accounts due to strict security policies. The only authorized way to clear the old phone requirement is through your organization's administrative recovery procedures.

1
Sign in to the Admin Center

Log in to the Microsoft Entra admin center (or Microsoft 365 admin center) using your administrator credentials.

2
Locate the User Account

Navigate to 'Identity' > 'Users' > 'All users' in the left-hand menu, and use the search bar to find the former employee's account.

3
Open Authentication Methods

Click on the user's name to open their profile details, then select 'Authentication methods' from the left navigation pane.

4
Require MFA Re-registration

Click on the 'Require re-register MFA' option at the top of the pane. This will invalidate the old phone and prompt for a new MFA setup the next time someone logs into the account.

Reset Authentication Methods via Microsoft Entra ID Admin Center
Revoke Active Sessions: While on this page, it is highly recommended to also click 'Revoke MFA sessions' to immediately disconnect any active sessions the former employee might still have open on their devices.
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Frequently Asked Questions

Can Microsoft Support bypass MFA for a former employee's account?

No. Microsoft Support and community moderators cannot bypass security protocols or disable MFA on behalf of users. Only your organization's internal IT administrator can reset the authentication methods.

What if the only global administrator leaves the company and their MFA is required?

If the sole global administrator leaves without transferring access, you must use Microsoft's account recovery process for administrators, which typically involves verifying domain ownership and company identity through the Microsoft Data Protection team.

How do I prevent this MFA lockout issue with future employees?

Implement a strict offboarding checklist that requires IT to reset passwords, revoke active sessions, and remove personal authentication methods before an employee departs. Using company-managed devices or hardware security keys for MFA also mitigates this risk.