John Sotiropoulos is a senior security architect at Kainos where he is responsible for AI security and works to secure national-scale systems in government, regulators, and healthcare. John has gained extensive experience in building and securing systems in previous roles as developer, CTO, VP of engineering, and Chief Architect. A co-lead of the OWASP Top 10 for Large Language Model (LLM) Applications and OWASP AI Exchange, John also leads alignment with other standards organizations and national cybersecurity agencies including NIST, MITRE, CSA, and the NCSC. He is the OWASP lead at the US AI Safety Institute Consortium and has recently published a book on Adversarial AI, Attacks, Mitigations, and Defence Strategies. An avid geek and marathon runner he is passionate about enabling builders and defenders to create a safer future