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by WhyNotHugo 1485 days ago
Keeping an extra key stored away works well enough.

IF my primary key gets lots, I'd hope the one backup one won't suddenly fail that same day -- if it does, then there's a problem.

The annoying bit is having to add all 2FA tokens to the backup one -- which is tricky if you want to store if off-site, since you need to bring it in every once in a while to add all the new 2FA secrets to it.