David Dumas, CISSP, CISM, has a B.A. in Computer Science. He has 40 years in the security field working at both Digital Equipment and Verizon. He has 9 years as a director of network security at Verizon. He has designed and run 19 cyber exercises since 2006. In 2024, he formed his new company, Dumas Cyber Security as a CEO, security coach, and consultant, specializing in cyber exercises. David is currently a facilitator at the Bridgewater State University Cyber Range. He is also an Immersive Labs Reseller and delivers cyber exercises to clients within the U.S.