WebAuthn
WebAuthn (Web Authentication) is a web standard developed by the W3C and FIDO Alliance that enables passwordless authentication on the web using public-key cryptography. It allows users to log into websites and applications using biometrics (like fingerprints or facial recognition), security keys (e.g., YubiKey), or mobile devices, replacing traditional passwords. This enhances security by eliminating phishing risks and credential theft while improving user convenience.
Developers should learn and implement WebAuthn when building applications that require strong authentication, such as banking, healthcare, or enterprise systems, to reduce security vulnerabilities associated with passwords. It is particularly useful for compliance with regulations like GDPR or for enhancing user experience in consumer-facing apps by enabling quick, secure logins. Use cases include multi-factor authentication (MFA), single sign-on (SSO) integrations, and any scenario where user identity verification is critical.