YubiKey 4C

Two-factor authentication made easy for hundreds of services!

YubiKey 4 is a USB device that you use in combination with your username/password to prove your identity. With a simple touch, YubiKey 4 protects access to computers, networks, and online services. Keep one on your keychain with your house keys, and a second backup key in a safe place at home.

All-in-one configurable security key performs: smart card (PIV), Yubico OTP, FIDO U2F, OpenPGP, OATH-TOTP, OATH-HOTP, and Challenge-Response. Yubico offers free and open source tools to configure the YubiKey yourself.

Easier and safer than authenticator apps: No more reaching for your smartphone to re-type passcodes that you receive via SMS or from an authenticator app. Just plug in your YubiKey, tap, and it does the rest for you.

Works out of the box with hundreds of applications: Use it with popular services like Facebook, Gmail, GitHub, DropBox, Dashlane, LastPass, Salesforce, Duo, Docker, Centrify, and hundreds more. Configurable for computer login (Windows, Mac, Linux). Follow the instructions that each service provides, to register your YubiKey.

Using your YubiKey: Go to yubico.com/start for instructions on how to register your YubiKey with each service. Steps to enroll your YubiKey 4 may differ from service to service. Yubico has provided steps based on their own testing, and links to those services for full instructions.

USB Type A compatible: Plugs into USB Type A ports. Purchase adapters for devices that feature lightening or USB-C ports to perform one time passwords.

Extremely durable (IP67 class rating by IEC 60529): High quality, crush-resistant, and water-resistant.

Attaches to house and car keychains.

Manufactured in USA and Sweden with high security and quality in mind.