Protect your online accounts from hackers with Yubico's Security Key. Reliable and user-friendly: it's your key to a safer digital world.
Convenient and Portable - The Security Key C NFC easily fits on your keychain, making it convenient to carry and use anywhere, ensuring you always have secure access to your accounts. Simply plug it in via USB-C or tap your NFC-enabled device to authenticate.
Versatile Compatibility - Supported by Google and Microsoft accounts, password managers, and hundreds of other popular services. It works with Windows, macOS, ChromeOS, and Linux. The "Works with YubiKey" page lists compatible services.
FIDO Protocols Only - The Security Key Series is the more affordable security key that supports only FIDO2/WebAuthn (hardware-bound passkey) and FIDO U2F authentication protocols. For enhanced compatibility, upgrade to the YubiKey 5 Series.
Durable and Reliable - High-quality design and resistant to tampering, water, and crushing. No batteries or network connectivity required, providing reliable authentication without any downtime. Securely manufactured in the USA and Sweden.
Yubico Authenticator App - Manage passkeys, FIDO2 PIN on desktop version - Upgrade to the YubiKey 5 Series to use OATH and PIV credentials with the Yubico Authenticator app.
Technical information
A FIDO-only hardware security key with USB-C and NFC. Suitable for phishing-resistant MFA and passkeys for services that support FIDO2/WebAuthn or FIDO U2F.
