Get the YubiKey, the #1 security key, offering strong two factor authentication from industry leader Yubico.

The name "YubiKey" derives from the phrase "your ubiquitous key" and "yubi", the Japanese word for finger, emphasising the YubiKey's versatility and the physical touch used to verify the user's presence.

YubiKey 5 is our most versatile security key supporting authentication to a wide range of services and applications using not only FIDO protocols but also OTP, OATH and Smart card/PIV.

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Nov 14, 2025 · What is a YubiKey? A YubiKey is a small hardware device that provides strong, physical multi-factor authentication. Designed by Yubico, it’s built to support a range of secure login protocols …

May 7, 2026 · Learn what a YubiKey is, how it works, and why it’s one of the most secure authentication methods. Explore use cases, benefits, and limitations for modern businesses.

May 19, 2026 · The YubiKey 5 Series keys have the rugged build quality characteristic of all Yubico devices. The keys also do more than just provide MFA and passwordless login; they also function as …

With a simple touch of YubiKey, you can protect your PC logon, network authentication, and access to online services. It also supports FIDO2, WebAuthn, U2F, smart card (PIV), Yubico OTP, electronic …

Jan 10, 2026 · The Yubico YubiKey 5 Nano is a discreet, tiny security key that provides the features you need to lock your devices and services while you're on the road.

Nov 28, 2025 · YubiKey, a small, durable hardware token, replaces vulnerable passwords with strong, cryptographic authentication. When people ask “What is a YubiKey?”, the simplest explanation is that …