Microsoft Authenticator Lite in Outlook
Authenticator Lite (in Outlook) is a feature that allows your users to complete multi-factor authentication for their work or school account using Outlook on their iOS or Android device. This feature will be enabled on May 26th for all tenants that have not disabled it. If you do not wish for this feature to be enabled on May 26th, move the state to ‘disabled’ or set user include and exclude groups prior to May 26th.
We always recommend having users download Authenticator to complete their sign-ins, where we can offer the most up-to-date security features. However, users that have not downloaded the app to their device can now approve authentication requests and receive TOTP codes in Outlook, bringing the security of Authenticator to a convenient location.