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There are ways around this for some things but, probably not with services like Facebook. For example with Amazon I use 2FA with a cellphone. As a backup I use a hardware token and an Admin account. If my cellphone gets stolen I pull the 2FA card out of my wallet.


Provided that nobody steals your wallet and you don't lose that card.


In that case you use the backup codes that you had printed and put in a safe a register a new 2FA token.




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