There are so many physical security keys out there. Which one should I use? August 25, 2021 16:38 Updated Anything that supports Fido U2F will work, such as YubiKey® and the Kensington Verimark Fingerprint Key. Related articles How do I add more devices to my Internet Identity? Why am I being asked to enter my PIN upon logging in to Internet Identity using my YubiKey®? What hardware is acceptable to use for users who opt for self-custody? I’ve lost my security key and did not add additional devices to my Internet Identity, what can I do? I just set up my Internet Identity using my physical security key. I have another one that I wish to use as a backup in the event I lose my current one. Comments 0 comments Please sign in to leave a comment.