Microsoft users worldwide are experiencing issues logging into Office 365 applications with Multi-Factor Authentication (MFA). See current status here.
We have deployed a temporary fix to restore most users’ access to their accounts. This solution should work for those logging in from an on-campus, wired connection using text message MFA codes. If you continue to experience issues, wait an hour or so before attempting to log in again.
Microsoft is still working on resolving the root issue.