The YubiKey 5Ci combines hardware-based authentication and public key cryptography to eliminate account takeovers. The YubiKey 5Ci is FIDO and FIDO2 certified.
With modern authentication standard like FIDO2 and its related website technology, WebAuthn, hardware security keys can work alone to grant access to a service or can be used in combination with passwords or with fingerprint reading, face recognition or other biometric technology.
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