As Founder, President, and CEO of Secure Managed Instructional Systems, LLC (SEMAIS), Dewayne Hart is a leading voice on how Artificial Intelligence (AI), continuous threat exposure management, and leadership accountability are reshaping organizational risk, critical infrastructure protection, and national security posture.

A retired U.S. Navy Chief Petty Officer, Hart served 20 years as a Fire Controlman aboard naval combatants, including the USS Kearsarge, USS Constellation, USS Enterprise, and USS Spruance. He has briefed leadership at the Department of Veterans Affairs (VA), the U.S. Army, the U.S. Navy, the National Cyber Summit, the Department of the Air Force Information Technology & Cyberpower (DAFITC) conference, and EC Council CyberTalks on global cybersecurity challenges.

Hart has led technical advisory and cyber readiness operations across government and industry, driving strategy and continuous threat exposure management for commercial leaders including PricewaterhouseCoopers (PwC), Duke Energy, Kaiser Permanente, and Wells Fargo. As the CEO of SEMAIS, a cybersecurity consulting firm, he directs the organization in delivering solutions for cybersecurity advisory, AI modernization, business alignment, Information Technology (IT) operations, and workforce readiness, guiding public and private entities to engineer cyber defense and security readiness across multiple platforms.

An accomplished author and former Forbes Technology Council contributor with extensive publications, including The Cyber Resilience Report LinkedIn newsletter and contributions across executive media platforms, he writes on emerging threats, human leadership, and digital resilience. He is the author of The Cybersecurity Mindset: A Virtual and Transformational Thinking Mode, Cybersecurity Leadership: How to Develop a Successful Mentality and Win, and CISSP Practice Questions & Explanations.

An in-demand authority who has delivered over 70 podcast episodes across platforms like The Chief of Cybersecurity® on Spotify and YouTube, as well as The Cyber Truth with Dewayne Hart on SkytopTV, and dozens of keynote speaking engagements, having spoken on global stages such as the InCyber Forum in Canada on AI and Modern Warfare, GDS Group, GovTechCon, the Armed Forces Communications and Electronics Association (AFCEA) Atlanta, and Capitol Technology University, he guides Chief Information Security Officers (CISOs), board directors, and military leaders through SEMAIS Masterclasses on AI governance, continuous threat exposure management, and the Big 4 Model for cyber defense.

He holds a Master of Science (M.S.) in Information Assurance from the University of Maryland and maintains Certified Information Systems Security Professional (CISSP), Certified Ethical Hacker (CEH), Certified in Governance, Risk and Compliance (CGRC), Certified Network Defense Architect (CNDA), Microsoft Certified Technology Specialist (MCTS), and Information Technology Infrastructure Library (ITIL) professional certifications.

For a deeper look into his leadership strategies and executive framework discussions, tune in to The Chief of Cybersecurity® Channel, where he details proactive defense strategies, AI cybersecurity leadership, and navigating AI-driven organizational transformation.