Multifactor authentication (MFA) is required for faculty and staff to access M365 services. This includes Email, OneDrive, Teams, Office Suite, Forms, Bookings, and other Microsoft applications. Microsoft MFA is also used to authenticate for remote access (FortiClient / VPN).
To set up MFA or change contact settings, navigate to https://aka.ms/mfasetup
Check out these knowledge base articles for detailed information regarding MFA: