What are common security risks associated with using sessions for password protection in PHP?

Using sessions for password protection in PHP can expose sensitive information if the session data is not properly secured. One common risk is session hijacking, where an attacker steals the session ID and impersonates the user. To mitigate this risk, it is important to use secure session handling techniques such as regenerating the session ID after a successful login.

session_start();

// Regenerate session ID after successful login
session_regenerate_id(true);