[jhogervorst]

> For hardware security keys, you can buy multiple keys, register all of them, and keep them in different places. Then if you lose one you just use one of the others (and register a replacement to maintain redundancy).

Do I need to have all keys in my physical possession to register them with a new account?

I could imagine having some backup keys in different places, but if I need to collect them every time I want to register them for some new account or service, it sounds like a lot of trouble.

(And if the process is too much trouble, the result would be that: (1) I don't use the hardware keys for those accounts, which is less secure; (2) I only register my primary key that I keep nearby, which is dangerous if it would get lost or broken; or (3) my backup keys end up at the same place as the primary one, due to forgetting or being too lazy to put them back, which is also dangerous…)

[ShredKazoo]

>Do I need to have all keys in my physical possession to register them with a new account?

Yeah I think so. Good points.