Yeah, except physical devices get lost, stolen or damaged. So there needs to be ...

cbsmith · on July 14, 2023

...and there are, and they're remarkably similar to what you do with Yubikeys: you have extra keys, and when you lose one, you uses the other to get in, and then you invalidate the old keys (although in the physical world, this means getting a new lock and a new set of keys, instead of just getting one new key and removing the lost key as a valid key).

bombolo · on July 14, 2023

Except you'd have to invalidate a yubikey on countless websites.

cbsmith · on July 14, 2023

I mean, if you're using a key to get in to countless physical things, then you have the same problem.

bombolo · on July 14, 2023

Do you have countless homes?

cbsmith · on July 17, 2023

I do not.

None of the locks for my home are on a network where you can broadcast key updates either.

I also tend not to have one key that can access my house, my car, my safety deposit box, my safe, my bike, my locker, etc.