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Is there any sort of backup in case it gets destroyed or lost? Can you clone it?

• nobodyorother 9y ago
  The only backup I know of is getting another key that you register in the same way as the first key. Hopefully they don't both break at the same time.
• tptacek 9y ago
  The entire security model depends on the devices being uncloneable.
  • noja 9y ago
    But my security model does not allow putting myself in a position where I am stranded without my second factor (or doing huge amounts of work re-registering everything).
    • tptacek 9y ago
      That's why you set up backup factors. It is for the same reason that services like Google Mail won't let you set up a U2F token without a backup factor.
  • deleted 9y ago
    [deleted]