Same functionality as YubiKey 4 and YubiKey 4 Nano
Rugged, no batteries or moving parts
Designed for keychains
For USB-C ports
Secure: Prevents unauthorized access by requiring the physical presence of the key to log in on that device
Easy to use: Plug it in and touch the gold button or edge; no codes to type or apps to install
Affordable: The same YubiKey can be used with nearly unlimited services
Durable: Rugged, water-resistant, no batteries or moving parts
Everywhere: Use it on Microsoft Windows, Mac OS X, Linux, and Chrome OS for Chromebooks
Convenient: Fits nicely on a keychain, in a wallet, or inside a USB port
Two-factor authentication made easy
Two-factor authentication (2FA) is also referred to as two-step verification (2SV). It adds an extra layer of security to your account that you, and only you, can access in order to prove your identity.
Millions of people use YubiKeys for 2FA because they're the easiest to use, super secure, and affordable. Plug in your Yubico Yubikey 4C USB C Auth Device and tap it to log in to your computers, networks, and online services. Keep one on your keychain with the key to your house/car, and a second YubiKey in a safe place as a backup.
All-in-one configurable security key
Different services use different types of security protocols. YubiKeys are capable of performing multiple protocols, so you can use the same key for almost an unlimited number of services.
Secure Static Passwords
smart card (PIV)
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.