WTF: Can't use Authenticator app for @Google account 2FA w/o providing a phone #!?
Can anyone help provide a non-sinister reason for this?
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Sure it is. Security is less with a phone number backup than a pure 2FA solution, but recovers when 2FA hardware fails.
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Phone number lets you send a recovery code. Absent that, your account is forever-locked-out. Security v usability
End of conversation
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