An authentic mechanism verifies the identity of users accessing a system or service. It ensures authorized access and protects against unauthorized entry. Methods can include passwords, biometrics, tokens, or multi-factor authentication. Its purpose is to maintain security and protect sensitive information.
There are many ways a computer security system may authenticate a user. Some of them are:
Common method using unique credentials for user identification and access.
Numeric code for authentication on devices or access systems.
Uses unique biological or behavioral traits for secure and convenient authentication.