The signalUnknownCredential() static method of the PublicKeyCredential interface signals to the authenticator that a credential ID was not recognized by the relying party (RP) server.| developer.mozilla.org
The Web Authentication API (WebAuthn) is an extension of the Credential Management API that enables strong authentication with public key cryptography, enabling passwordless authentication and secure multi-factor authentication (MFA) without SMS texts.| developer.mozilla.org