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How to Migrate Legacy MFA to Entra ID Authentication Methods

Migrating from the legacy Multi-Factor Authentication (MFA) portal to the new Entra ID Authentication Methods in Azure Active Directory (AAD) is a crucial step to enhance your organization’s security posture. Here’s what you need to know:

Legacy MFA portal (https://account.activedirectory.windowsazure.com/UserManagement/MfaSettings.aspx)

The legacy MFA portal (https://account.activedirectory.windowsazure.com/UserManagement/MfaSettings.aspx) is being replaced by the Authentication Methods blade in the AAD portal (https://portal.azure.com/#view/Microsoft_AAD_IAM/AuthenticationMethodsMenuBlade/~/AdminAuthMethods).

AAD portal (https://portal.azure.com/#view/Microsoft_AAD_IAM/AuthenticationMethodsMenuBlade/~/AdminAuthMethods)

Steps to migrate

  1. Review your current MFA settings in the legacy portal
  2. Document the user settings, including phone numbers and OATH tokens
  3. Enable the new Authentication Methods in the AAD portal
  4. Configure the desired authentication methods (e.g., Microsoft Authenticator app, FIDO2 security keys)
  5. Assign the new authentication methods to users
  6. Communicate the changes to your users and provide guidance on setting up the new methods
  7. Monitor the adoption of the new authentication methods
  8. Disable the legacy MFA methods once the transition is complete

Risks and consequences

  • Users may experience disruption if not properly informed and guided through the migration process
  • Misconfiguration of the new authentication methods could lead to lockouts or security vulnerabilities
  • Legacy MFA methods will eventually be deprecated, so timely migration is essential

By carefully planning and executing the migration, you can ensure a smooth transition to the more secure and feature-rich Entra ID Authentication Methods. Your users will benefit from a better authentication experience, and your organization will be better protected against evolving security threats.

Reference: What authentication and verification methods are available in Microsoft Entra ID?