Frequently Asked Questions Information Technology Services Multi-factor Authentication (MFA) Multi-factor Authentication (MFA) What is Multi-Factor Authentication (MFA)? Why is MFA important? When to Approve MFA Prompts? How do I add or change my Office 365 login verification method to use my phone? How do I change my default Multi-factor Authentication method? How do I change my universal password in Office 365? How do I register for Owens Single Sign On (SSO) Authentication? How often should I be prompted for Multi-Factor Authentication? When should I use MFA? ×