FIDO2 passwordless authentication is one the technologies that you can use to enhance the security of your business systems. FIDO2 is an open authenticationstandard that is hosted by the FIDO Alliance that consists of the W3C Web Authentication specification and the Client to Authentication Protocol (CTAP). CTAP refers to an application layer protocol that is used for communication between a client (browser) or a platform (operating system) with an external authenticator.
FIDO2 is an extension of FIDO U2F. It offers the same level of high-security based on public key cryptography. It offers expanded authentication options that include strong single factor (passwordless), strong two factor, and multi-factor authentication. With these new capabilities, this authentication method can entirely replace weak static username/password credentials with strong hardware-backed public/private-key credentials. Keep in mind that these credentials cannot be reused, replayed, or shared across services, and they are not subject to phishing and MiTM attacks or server breaches.
FIDO2 passwordless authentication has a number of advantages. One of them is stronger security. This technology replaces weak passwords with strong hardware-based authentication using public key crypto which helps to protect against phishing, man in the middle attacks, session hijacking, and malware attacks. No secrets are shared between services.
Another advantages of FIDO2 is that it is an open standard. Open standards are known for providing flexibility as well as product choice. They are designed for existing phones and computers, for many authentication modalities, and with different communication methods, including NFC and USB.
For services that require a higher level of authentication security, FIDO2 supports step up authentication which allows the use of strong single factor (passwordless), two-factor and multi-factor authentication for additional protection.
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