Users have the broadest options for strong authentication including not only two-factor authentication, but also support for single factor passwordless login and multi-factor authentication in conjunction with user touch and PIN. It offers multi-protocol support including FIDO2, Yubico OTP, OATH HOTP, U2F, PIV, and Open PGP. The YubiKey offers superior security by combining hardware-based authentication and public key cryptography to effectively defend against phishing attacks and eliminate account takeovers. Experience high security with step-up authentication.Fast account recovery in the case of a lost or stolen device.Rapid onboarding of a new device and establishing it as a trusted device.Fast and easy user registration to websites and applications.Streamline authentication with a portable root of trust Secures customer-facing mobile apps such as mobile banking apps, retail apps etc.Secures employee-facing, in-house mobile apps (e.g.Strong security for mobile apps on Android.Single unified solution delivers reliable, hardware-based authentication for apps on Macs, iPhones and iPads.Increased mobile app security with USB-C and Lightning support, in an all-in-one key Supports WebAuthn/FIDO2, FIDO U2F, OTP and Smart Card capabilities.Provides strong passwordless, phishing resistant strong two-factor and multi-factor authentication.

Enables secure web and mobile app login across all major operating systems such as iOS, Android, Windows 10, and Linux, and across all major browsers.

Eliminates account takeovers and delivers strong phishing defense.

Newest addition to the YubiKey 5 Series, with a future-proofed, multi-protocol key Learn more about the services that work with YubiKey 5Ci’s Lightning connector in our Works with YubiKey catalog.

Supported logins on the Brave browser include, ,, , and. Support for the Lightning connection of the YubiKey 5Ci is currently emerging with a growing number of iOS apps, including 1Password, Bitwarden, Dashlane, Keeper Security, LastPass, and Okta, as well as a number of services through the Brave browser. The USB-C connection of the YubiKey 5Ci works with a wide range of services including: Google, Microsoft Accounts, Dropbox, Facebook, Twitter, GitHub, Dashlane, Keeper Security, and more.

Yubikey 5ci