As others have pointed out, cryptographic authentication is very hard to bootstrap if you simply loose your device. Just last month my missus cracked the glass of her iPhone. Apple repaired it under AppleCare, which is great… except … that they didn’t tell her that the “glass repair” entails them replacing the guts of the phone and wiping it in the process. Apple iPhone backups don’t contain cryptographic secrets lik…
> Run away screaming. Don’t believe the hype. Wait until the vendors get their act together and come up with a solution for transfer and recovery. I believe all of the issues you've described, but you can usually add multiple passkeys to each service. There is nothing stopping you from adding your iPhone and a cheap android phone and having redundancy, or using 1Password and storing your passkey in there. iPhone back…
How does this work? Do I have to visit the website of each service from my secondary device for it to get the alternate passkey?