Why is Session security important in Laravel applications, and what problem does it solve for developers?

Why is Session security important in Laravel applications, and what problem does it solve for developers? The key reason to understand session security is that Laravel applications are usually composed of several layers that must work together predictably. Sensitive session data and identifiers should be protected through secure transport and appropriate cookie settings. Ignoring that boundary can lead to duplicated logic, poor security, unnecessary database work, or code that is difficult to test. Why it matters in practice: Laravel sessions persist server-side user state across requests, while cookies store small client-side values sent back with subsequent requests. The specific focus here is session security: Sensitive session data and identifiers should be protected through secure transport and appropriate cookie settings. This question is designed to test not only terminology, but also how the concept fits into Laravel's request, application, database, security, or deployment workflow.