Java: Salting and BCrypt

The filter chain processes security-related logic, such as authentication and authorization.

Spring Security's filter chain consists of a sequence of filters that intercept HTTP requests and apply security logic. This modular approach allows for managing authentication (e.g., verifying user credentials) and authorization (e.g., access control) centrally and consistently across the application. For instance, in an e-commerce platform, the filter chain can be configured to ensure only authenticated users can access the checkout process.