Password Based Authentication
Password based authentication is a security mechanism where users prove their identity by providing a secret password known only to them. It is one of the most common authentication methods used in web applications, systems, and services to control access to resources. The system verifies the provided password against a stored credential (often hashed and salted) to grant or deny access.
Developers should learn password based authentication because it is fundamental to securing user accounts in virtually all applications, from simple websites to enterprise systems. It is essential for implementing login systems, protecting sensitive data, and meeting security compliance requirements. Understanding best practices like hashing, salting, and secure storage is critical to prevent breaches such as credential stuffing or database leaks.