> I'd be surprised if "most" people have a backup device/codes. Really? I'd expect someone who's paying $50 for a yubikey to spend another $100 to have a backu

> I'd be surprised if "most" people have a backup device/codes. Really? I'd expect someone who's paying $50 for a yubikey to spend another $100 to have a backup key, a key for their laptop, and one for their desktop. Add another one for your keychain if you are using it on your phone (if your phone supports it).