The YubiKey is a USB stick that enhances security in data transmission. It supports the FIDO2 protocol, FIDO U2F, One-Time Password (OTP), OpenPGP, and Smart Card. The YubiKey thus provides strong two-factor authentication and replaces weak passwords. Login credentials are a significant security risk for companies today. Theft, weak passwords, or compromised login data are the biggest challenges in this regard.