It is no more cumbersome than buying a replacement yubikey. The only difference is that
phones get replaced more often. This is an inherent tension when using a mobile device for
long-term security.
----- Original Message -----
Adding your keys to FreeOTP on a replacement or additional device can
be
quite cumbersome. It would require contacting many of the services to set up
new keys, which in turn would require verifying your identity for each of
those services.
To guard against the keys being stolen, the backup could be encrypted
with a
key from AGP or OpenKeychain (Android). Thus, backup and restore would
require the key - if possible, FreeOTP could be made to require that the
chosen key have a passphrase.
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