Microsoft informed me that my Yubikey can only be used to login on the laptop I used to registered it.
Why in the world would I want to hobble my Yubikey so I have to drag a laptop along with it just to sign onto Microsoft. I’m trying to unhobble the key but I can’t see any way to do it on the Microsoft website. EDIT: 8/12/2026 Having read the comments I have gained a better understanding. This is a sample of the ambiguous message displayed on my screen:
“This passkey can only be used on the DEVICE where it was created. If you lose the device, you won't be able to use it to sign in to your Microsoft account.”
They could have written: “This passkey can only be used on the HARD TOKEN where it was created. If you lose the hard token…”
(The word “Passkey” is a newly adopted word added to the internet login technology lexicon in 2022.)