This error happens when you try to access a service that requires you to have multi-factor authentication enabled on your account. Make sure you have followed all of the steps to enroll at least one device in multi-factor authentication. If you are a student, make sure to follow the instructions in the student section of the enrollment page.
If you receive this message and your current password is not working, OIT has detected suspicious activity on your account and has reset your password as a safeguard.
To regain access to your account, you must either: