Option 1: You Can Still Verify Your Identity

If your old phone or another registered verification method still works, you can update your security information.

1. Visit Microsoft Security Info .
2. Sign in using your university account and complete verification using your existing method.
3. Select Add sign-in method to register Microsoft Authenticator on your new phone, or update your phone number if that option is available.
4. Follow the instructions to verify that the new method works.
5. Once your new method is working, remove the outdated phone or Authenticator registration.

Important: Do not remove your old verification method until the new one has been successfully configured and tested.

Option 2: You Cannot Access Your Old Phone or Number

If Microsoft keeps asking you to approve a sign-in on your previous phone or sends a code to a number you no longer use, check whether Sign in another way offers an available verification method.

If no available method works, you will need assistance from IT Support to recover access and register a new verification method.

You do not need to keep requesting codes from a number you can no longer access.