Dewayne Hart

Dewayne Hart is a distinguished cybersecurity strategist and keynote speaker dedicated to helping organizations and individuals develop a proactive security mindset in the face of evolving digital threats. With decades of experience, he delivers high-impact keynotes and seminars that demystify the cyber threat landscape—offering actionable insights into leadership, risk management, cyber resilience, and strategic security planning in the digital age. Known for his engaging style and ability to translate advanced technical concepts into practical strategies, Dewayne is a trusted voice in today’s increasingly complex and high-risk cyber environment.

Before entering the civilian cybersecurity sector, Hart served 20 years as a U.S. Navy Chief Petty Officer specializing in computer systems, network defense, and weapons systems security. This military foundation instilled operational discipline, incident response expertise, and leadership skills that now define his consulting work. In 2014, he founded Secure Managed Instructional Systems (SEMAIS), delivering cybersecurity advisory services, compliance-driven risk management, workforce cyber readiness programs, and security framework development for clients including PwC, Kaiser Permanente, and multiple U.S. federal agencies.

Hart is the author of "The Cybersecurity Mindset," which explores strategic, human-centered approaches to cyber defense. A former Forbes Technology Council contributor, he has shared expertise on artificial intelligence, threat intelligence, security culture, and cyber workforce readiness. As host of The Chief of Cybersecurity podcast, he amplifies these themes—covering topics from threat awareness and digital parenting to organizational resilience.

As a speaker, Hart reframes cybersecurity as a business enabler and competitive advantage. His presentations address the convergence of AI and security, the importance of embedding a resilience-first culture, and the strategies needed to anticipate, adapt, and neutralize threats. Whether speaking to executives, technical teams, or rising cyber professionals, Hart equips audiences with the mindset, tools, and foresight to thrive in today’s rapidly shifting cyber battlefield.

Hart is the author of "Cybersecurity Leadership – How to Develop a Successful Mentality and Win" as well as "The Cybersecurity Mindset," both of which explore the thinking processes and leadership strategies necessary for cybersecurity excellence. As a former contributor to the Forbes Technology Council, he has published thought leadership on AI integration, workforce preparedness, security blind spots, and building cyber-first cultures.

Through his speaking, writing, and podcasting, Hart engages executives, technology leaders, and security teams worldwide. His audiences walk away with the tools, foresight, and confidence to anticipate, adapt, and act—turning cybersecurity from a reactive defense into a proactive advantage.