The authors, from Google's Privacy, Safety and Security team, emphasize the importance of AI in cybersecurity. They collaborated with Airbus to create the GenSec Capture the Flag (CTF) event at DEF CON 33. The primary aim was to facilitate learning and exploration of AI's role in cybersecurity workflows. The event attracted nearly 500 participants with diverse skill levels. A significant percentage of participants were new to using AI in security. An overwhelming majority found the event beneficial for learning about AI applications. They introduced Sec-Gemini, Google's experimental Cybersecurity AI, as a tool within the CTF. Feedback on Sec-Gemini was overwhelmingly positive and helpful for the participants. The authors acknowledged the enthusiastic participation and valuable community feedback. They plan to use the lessons learned to improve Sec-Gemini. The team remains committed to advancing AI in cybersecurity and sharing their research.