Advice Request Using Authenticator Apps with Microsoft Products

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For quite awhile I have been using 2FA where feasible with a USB Dongle or an Authenticator app Authy without issue. However, Microsoft now requires 7 digit codes via SMS for 2FA but my app, and others I tried offer 6 which do not work. Anyone experience the same?
 
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Use Microsoft Authenticator.

Choose the Password-less route for logging into Microsoft Apps and Websites.

https://account.live.com/proofs/Manage/additional

On Windows 10, you can use Windows Hello to login.

On Android and iOS, you can use Approval Requests & Code Match via the Microsoft Authenticator app.

More about it here: Microsoft Authenticator – Securely Access & Manage Your Online Accounts
 
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Microsoft never send my a SMS and it never need more then 6 (standard) digits.
I use also andOTP from F-Droid and it works perfectly
 
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Found this to make it easier to understand.



Thanks for the info. I guess their security is geared towards working with their own app which I downloaded onto my Android. Seems ok now.