Okay new thread with this question. My Iphone 5S is just rebooting over and over again. Any advice? I will head over to Apple store as soon as I can. I am abroad. Do you think it will work if I buy a new phone and switch my US SIM to it? Also I WANT SIGNAL BACKUP OPTION. 


https://twitter.com/zeynep/status/995999577231757312 …
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Replying to @zeynep
It may be worse than that. If I understand the Duosec documentation correctly, the secrets it uses for TOTP are not backed up, so they won't be transferred to a new phone.
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Replying to @SteveBellovin
Yep, I know that. I wouldn't mind that as much if I could at least have a backup somehow!
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Replying to @zeynep @SteveBellovin
Switching authenticator apps to a new phone is a huuge pain. They kind of have to be, by nature, but the documentation is so inexplicably poor. That has no excuse. (Google is so bad at this--they can spend billions to cure mortality but cannot bother to document for users).
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It's nuts! Nobody documents properly for ordinary users, and technical people can often figure it out after a lot of head-banging and asking around.
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