Yubico

Yubico makes physical security keys that provide strong two-factor authentication for online accounts and systems. You plug a YubiKey into your computer's USB port or tap it on your phone to authenticate instead of typing a password. This hardware-based approach is fundamentally more secure than SMS codes or software tokens because it's resistant to phishing attacks and can't be copied remotely.

The keys support multiple authentication protocols including FIDO2, U2F, and OTP, making them compatible with hundreds of services like Google, Microsoft, Facebook, password managers, and enterprise systems. Yubico offers various form factors including USB-A, USB-C, and NFC-enabled keys to work with different devices. The company also provides developer tools and APIs for integrating YubiKey authentication into custom applications.

Yubico primarily benefits IT professionals securing corporate networks, enterprises protecting sensitive data, and security-conscious individuals who want stronger protection for their online accounts. It's particularly valuable for organizations implementing passwordless authentication systems and individuals seeking to protect against account takeover attacks.