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by RcouF1uZ4gsC 2174 days ago
> I switched iphones and google authenticator did not bring my 2FA's over,

I have lost 2 FA's on other services via that means as well. I think it is easy if you have cloud backup on your phone that you think that you can just wipe your old phone and sync your new phone and you will be all set. Google Authenticator doesn't work like that.
1 comments
guiambros 2174 days ago
Google Authenticator made it slightly easier with the "Transfer Account" functionality, but still requires access to your old device, so it doesn't help if your already wiped it. I personally would prefer backups would transfer all configuration, but understand this would be an additional risk.

Of course you can just use Authy, although it does introduces the risk of an attacker compromising your phone number.

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gchamonlive 2174 days ago
To mitigate this, after you add browsers and phones to your Authy account, you go yo Settings, Devices and disable Multi-device.
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