Authentication

Authentication is the process of verifying the identity of a user, system, or entity to confirm they are who they claim to be before granting access to protected resources. It is a fundamental access control mechanism that prevents unauthorized access to sensitive data. Authentication methods often use multiple factors, known as Multi-Factor Authentication (MFA) or Two-Factor Authentication (2FA), to enhance security. It differs from authorization, which determines what resources an authenticated user can access. Modern authentication approaches, such as passwordless authentication, leverage biometric verification, hardware tokens, and cryptographic passkeys to improve security and user experience.Trendig glossary trems