User authentication is the process of verifying the identity of individuals accessing a system or application. Here’s how it works:
Credentials: Users provide credentials such as usernames, passwords, PINs, or biometric data (like fingerprints or facial recognition) to prove their identity.
Multi-factor Authentication (MFA): MFA enhances security by requiring users to provide multiple forms of authentication, adding an extra layer of protection. For example, combining a password with a fingerprint scan or a one-time code sent to a mobile device.