Part 5: Advanced Security Features and Deployment Optimization

This part commences with an explanation of session fixation attacks and Spring Security’s defense mechanisms against them. It proceeds to explore methods for managing logged-in users and limiting the number of concurrent sessions per user. The association of a user to HttpSession by Spring Security and techniques for customizing this behavior are also detailed.

Then, we delve into common security vulnerabilities such as Cross-Site Scripting (XSS), Cross-Site Request Forgery (CSRF), synchronizer tokens, and clickjacking, along with strategies to mitigate these risks effectively.

Following this, we present a migration path to Spring Security 6, highlighting notable configuration changes, class and package migrations, and significant new features, including support for Java 17 and enhanced authentication mechanisms with OAuth 2.

Subsequently, we explore microservices-based architectures and examine the role...