Yrieix Denis advises executive teams on public affairs, cybersecurity, digital investigations, and economic intelligence. A former manager at the French National Cybersecurity Agency (ANSSI), he supports organizations in governance, risk management, and compliance, and has trained over 30 companies in cyber crisis management. He is co-author of a book on AI cybersecurity (AFNOR, 2026) and a forthcoming work on digital sovereignty (2027). Yrieix founded Alyghieri Consulting in 2024 after several years in public service and strategic advisory.