Microsoft Authenticator lite generally available

Microsoft Authenticator Lite has been made generally available (post). This is a feature allowing Microsoft Outlook to work as the authenticator app for a user. This is a nice feature for users who are not using MFA, or maybe still use SMS MFA for their login and don't want to install the authenticator app for some reason.

I would of course, recommend to use the authenticator app itself, but admit this can simplify things for users. The feature isn't "brand new", but it has not been supported for the legacy "per user mfa" a lot of organizations are still using. 

If you do not want this new feature available to users, you would have to turn it off, as it seems it will automatically made available to everyone. There is a good description of how to do so in this article. This will be rolling out from late september and for a couple of weeks.