YubiKey 4C

The YubiKey is the original and leading FIDO U2F authenticator, proven at scale by global enterprises and consumers.

The YubiKey 4C is the world’s first multi-protocol USB-C authentication key. It includes FIDO U2F, strong crypto and touch-to-sign, plus One-Time Password, and smart card functionality.

To authenticate with a FIDO U2F certified YubiKey 4C, the user simply plugs it in, and touches the gold edges. Manufactured in the USA and Sweden, with best practice security processes. YubiKey 4C is crush-safe, and fits nicely on a keychain with your home and car keys.

YubiKey 4C also secures access to a wide range of IT applications, and works out-of-the-box with hundreds of services.


Yubico is the leading contributor to FIDO standards. Its flagship product, the YubiKey, is an innovative USB and NFC authentication key. The product secures access to computers, networks, and services, and is loved by millions in 160 countries, including 9 of the top 10 internet companies.
Founded in 2007 with the mission of making secure login easy and available for everyone, Yubico co-created the FIDO U2F protocol together with Google. And Yubico’s CTO, Jakob Ehrensvard, introduced the concept of an authenticator that works across any number of services, with no shared secrets — which is the core innovation and foundation behind all FIDO standards.

“Meet the YubiKey”

“Webinar: Securing Business Intelligence on Salesforce.com with YubiKeys”

“How-To: Log In to Google Accounts with FIDO U2F Security Key”

Additional information

Company Yubico
Company Url http://www.yubico.com
Product Url https://www.yubico.com/product/yubikey-4c/
Purchase Url https://www.yubico.com/store/
Product Brief URL https://www.yubico.com/products/yubikey-hardware/
Specification U2F
Specification Version 1.1
Sales Phone +1-844-205-6787
Support Contact https://www.yubico.com/support/
Twitter* https://twitter.com/Yubico