Dewayne Hart

Twenty years in the United States Navy — retiring as a Chief Petty Officer with hands-on experience in computer systems and weapons defense platforms — gave Dewayne Hart something most cybersecurity speakers cannot offer: a mission-first mindset forged under real operational pressure. That discipline now drives everything he does as a cybersecurity strategist, author, and keynote speaker dedicated to one core idea: organizations that learn to think like their adversaries are the ones that survive.

Hart is the founder and CEO of Secure Managed Instructional Systems, LLC (SEMAIS), a cybersecurity advisory and workforce development firm whose work spans governments, Fortune 500 companies, and federal agencies. His client roster includes PwC, Kaiser Permanente, and multiple U.S. federal agencies — organizations that have trusted him to translate complex threat landscapes into clear, actionable strategy. His methodology centers on what he calls "putting on a Hacker's Hat" — equipping leaders and teams to anticipate adversarial tactics before vulnerabilities become incidents.

A recognized voice across the cybersecurity community, Hart has taken the stage at the National Cybersecurity Summit, Incyber Forum, and the Techno Security and Digital Forensics Conference, speaking to executives, practitioners, and government leaders alike. He is the host of the Chief of Cybersecurity® podcast — a platform born from his military rank and his passion for the field — where he explores how cybersecurity intersects with leadership, AI, workforce modernization, and everyday digital life.

Hart is the author of two influential books: "The Cybersecurity Mindset: A Virtual and Transformational Thinking Mode," a practical roadmap that challenges readers to move from reactive problem-solving to strategic, proactive defense; and "Cybersecurity Leadership: How to Develop a Successful Mentality and Win," which equips C-suite executives and senior leaders to align security initiatives with business objectives and build cultures of accountability and resilience. His writing and speaking share a single conviction: cybersecurity is not a technology problem — it is a leadership and mindset challenge.

From the boardroom to the frontline, Hart empowers organizations to transform cyber risk into strategic advantage — and to build the kind of resilience that holds long before a crisis unfolds.