Andy Ellis is a seasoned technology and business executive with deep expertise in cybersecurity, managing risk, and leading an inclusive culture. He is the author of 1% Leadership, Partner at YL Ventures, and is an advisor to cyber security startups. He is the founder and CEO of Duha, a boutique advisory firm focused on providing strategic consulting in the areas of Leadership, Management, Cybersecurity, Technology Risk, and Enterprise Risk Management. 

Andy has received a wide variety of accolades, including the CSO Compass Award, Air Force Commendation Medal, Spirit of Disneyland Award, Wine Spectator Award of Excellence (for The Arlington Inn), the SANS DMA Podcast of the Year (for Cloud Security Reinvented), and was the winner of the Sherman Oaks Galleria Spelling Bee. He was inducted into the CSO Hall of Fame in 2021.

Mr. Zalewski provides Retained CISO, cybersecurity consulting, and executive advisory services across multiple industries. His work includes advising international organizations on cybersecurity strategy, serving on executive advisory boards for security startups and VCs, and acting as a part-time or interim CISO. He offers expertise in incident response, program design, risk assessments, M&A due diligence, vendor reviews, architecture evaluations, and board-level reporting. With operational experience in healthcare, utilities, and global retail, his key strengths include organizational management, enterprise security strategy, executive reporting, and incident response leadership. He is a recognized voice in the industry, co-hosts the CISO Series: Defense-in-Depth podcast, and frequently speaks and moderates panels at top cybersecurity events.