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"Can I use my U2F security token for sudo instead of entering passwords?": Yes, you can.

We just updated our 2018 article about using a Yubico Security Key for local 2FA via PAM:

https://infosec-handbook.eu/blog/yubikey-2fa-pam/

– besides YubiKeys, you can also use Nitrokeys, or SoloKeys
– there are many more scenarios for U2F/WebAuthn
– post your own scenarios to help others

#u2f #webauthn #infosec #cybersecurity #security #yubikey #nitrokey #solokey #gdm #sudo