Microsoft Authenticator is a MFA application similar to the DUO MFA that you may already use to access some uregina systems if you are an U of R employee.
DUO MFA (employees only) will remain in place for existing systems for your uregina account (username/password), and MS Authenticator will be needed to access your new Microsoft account (username@uregina.ca / password).
Authenticator is mandatory for employees and optional for students until October 16, 2024 when it becomones mandatory.
See further info at IS Sercurity, Duo + Microsoft Authenticator