This cheatsheet provides best practices for improving Spring Boot security, focusing on a broader topic beyond just authentication and authorization. It covers key areas such as using HTTPS in production, testing dependencies for vulnerabilities, enabling CSRF protection, using content security policy for XSS protection, OpenID Connect for authentication, password hashing, using the latest releases, storing secrets securely, pen testing your app, and having your security team do a code review. The cheatsheet aims to help developers and maintainers improve their Spring Boot applications' overall security posture.