Explore the intricacies of Cross-Site Request Forgery (CSRF) and learn how to effectively prevent it using OWASP CSRFGuard in this comprehensive conference talk. Delve into classic examples and recent CSRF attacks, understand the implications of relaxing the Same-Origin Policy, and examine the role of CORS in web security. Discover techniques for identifying CSRF vulnerabilities, including real-world attack payloads and methods for searching for exploits. Gain insights into prevention strategies, with a focus on the game-changing SameSite attribute and its impact on CSRF protection. Examine the CSRF Guard flow and explore new features in version 4.x, including JSP Tag support. Conclude with practical recommendations and learn how to automate CSRF detection using nuclei templates. Equip yourself with the knowledge to safeguard web applications against CSRF attacks and implement robust security measures.