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Can I refuse MS Authenticator? (lemmy.ml)

submitted 1 month ago by [email protected] to c/[email protected]

270 comments fedilink hide all child comments

So my company decided to migrate office suite and email etc to Microsoft365. Whatever. But for 2FA login they decided to disable the option to choose "any authenticator" and force Microsoft Authenticator on the (private) phones of both employees and volunteers. Is there any valid reason why they would do this, like it's demonstrably safer? Or is this a battle I can pick to shield myself a little from MS?

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[–] [email protected] 10 points 1 month ago (3 children)

You can use Aegis and/or Yubico Authenticator instead, that's what I do.

[–] [email protected] 24 points 1 month ago

They said that the option to use other authenticators were disabled by their company

[–] [email protected] 11 points 1 month ago (2 children)

In my company at least, Aegis works for the first few logins, but it will keep nagging you have to switch to Microsoft's authenticator and you're locked out after a while.

[–] [email protected] 2 points 1 month ago (1 children)

How did know you're not using the MS Authenticator? Does the MS app phone home what logins your using?

[–] [email protected] 2 points 1 month ago

Apparently MS uses a "proprietary PhoneFactor 2FA solution" that Aegis doesn't support.

[–] [email protected] 1 points 1 month ago

My experience with it privately as well, and for Fido2 it says my system/browser is unsupported (Linux/Firefox) when it works on literally every other site.

[–] [email protected] 6 points 1 month ago

Unless it turns out that only the supid MS one works on that specific company.