loggingin
Logging in, or signing in, is the process by which a user proves their identity to an information system in order to obtain access to protected resources. It typically involves presenting credentials such as a username and a secret, usually a password. Modern systems often supplement this with multi-factor authentication, biometrics, hardware tokens, or push-based approvals to increase security.
Most login flows involve a client sending credentials to an authentication service over a secure connection.
Security considerations include using strong, unique passwords; enabling MFA; avoiding phishing and credential reuse; ensuring transport
Common issues include forgotten passwords, account lockouts after failed attempts, and problems with two-factor devices or
Variants of login include device-local access (PINs), biometrics, hardware security keys (such as FIDO2), and social