Lakera, a company specializing in AI security, recently participated in DEFCON31, a prominent cybersecurity conference in Las Vegas, where they sponsored the AI Village and introduced Mosscap, a game designed to engage users in AI security challenges. The event highlighted the increasing focus on large language model (LLM) security, with enterprises prioritizing the prevention of prompt injections, data leakage, and model misuse. Lakera's involvement included the Generative Red Team (GRT) Challenge, where participants tackled tasks to exploit vulnerabilities in models from major AI providers. The conference underscored the importance of AI security and the need for regulations, as emphasized by experts like Craig Martell from the U.S. Defense Department and Nicolas Moës from The Future Society. DEFCON31 also marked the beta launch of Lakera Guard, an API aimed at enhancing LLM security, which received positive feedback from the AI security community and stimulated discussions with policymakers.