Applied Paranoia

A hardware secure token that requires a fingerprint to unlock adds another factor to your secure authentication.

• Something you have
• Something you are

Even if the key falls out of your control, the fingerprint reader would render it useless

yubico

I'm a big fan of yubikeys, they have the bio series with built in fingerprint reader, and now the multi-protocol edition is not only webauthn fido2, it acts as a smartcard/PIV (i.e. ssh keys) Tech Details

The one annoying thing is the multi-protocol version isn't generally available, the fido2 edition is available

feitian

also provides fingerprint fido2 keys, but I'm not familiar with their security reputation https://shop.ftsafe.us/collections/fido-security-key-biometric

others

Any other biometric key options?

BusKill - A clip on device that when disconnected from a computer will trigger a fail safe event on the computer, such as locking the computer, shutting down, or any script you care for. Totally open source, both hardware and software.

If your a digital nomad or use a computer in public, this might be of interest.

https://www.buskill.in/ https://github.com/BusKill

You can even build it yourself

https://docs.buskill.in/buskill-app/en/stable/hardware_dev/bom.html

If you want to purchase a prebuilt model, they do accept crypto!