I’m not concerned per se and I definitely applaud the MFA requirement. I mean I hate MS and don’t like apps I don’t need, and I don’t trust them, but as others pointed out this would mostly just be whiny. That’s why I asked for reasons why restricting users to MS Authenticator would be preferable. If it’s more secure or technically way easier and thus cheaper to maintain then fine, I’ll find an acceptable way to comply. If not, then it’s them who are whiny and I’d rather make the case to let us use whatever authenticator we already have installed.
In the quiet words of the Virgin Mary: Come again, you piece of shit?