Spring Security is a great technology for developers looking to add an extra layer of security to their applications. It provides a comprehensive security solution that can be easily integrated into existing applications. It also offers a wide range of features, such as authentication, authorization, user management, and session management. The security framework is designed to be extensible, so developers can easily customize it to meet their own needs. Spring Security is a great choice for anyone looking to add an extra layer of security to their application. With its comprehensive features and ease of integration, it is a great tool for developers to use.