Explore the fundamentals of web application security in this 44-minute webinar presented by Christian Folini at Nullcon. Delve into the OWASP ModSecurity Core Rule Set (CRS), a powerful open-source tool designed to protect web applications from a wide range of attacks. Learn about the concept of Web Application Firewalls (WAFs), the ModSecurity engine, and key CRS features such as paranoia levels, stricter siblings, and anomaly scoring. Witness a live demonstration of the ruleset's detection capabilities and gain insights into managing false positives, custom responses, and rule updates in enterprise environments. Benefit from Folini's extensive experience in high-security ModSecurity configuration, DDoS defense, and threat modeling as he bridges complex technical concepts with his unique background in medieval history.