Dennis de Geus

Dennis de Geus is a seasoned cybersecurity leader currently serving as the Chief Executive Officer of Orange Cyberdefense since March 2023, overseeing a team of over 150 professionals in delivering high-quality cybersecurity services in the Netherlands. Previously, Dennis held the position of Vice President and Head of Cybersecurity at Capgemini, leading over 250 cybersecurity professionals and delivering a range of high-end security advisory and managed services. Additional experience includes roles as a Lecturer in Cyber Security at Cyber Security Academy The Hague, Lead Cyber Security & Privacy at Capgemini Invent, Cyber Security Strategist at Hewlett Packard Enterprise, and Director of Information Protection Services at KPMG. Dennis also served as Corporate Information Security Officer at KPN and held a director position at PwC for over 15 years, focusing on multinational clients in various industries. Educational credentials include postgraduate studies in EDP-auditing from Erasmus University and certifications from ISACA and Nijenrode University.