Cybersecurity’s center of gravity is shifting. Cloud infrastructure, software supply chains, AI agents, data security, and autonomous defense are creating new categories and giving a new generation of security CEOs plenty to talk about. These 11 executives stand out not necessarily because they run the largest cybersecurity companies, but because their companies and ideas are increasingly part of the industry conversation. 1. Amiram Shachar, Upwind Amiram Shachar is having a particularly consequential year. The Upwind co-founder and CEO previously founded Spot.io, which was acquired by NetApp, and now leads one of the fastest-growing names in cloud security. In September 2026, Upwind raised $300 million at a $3.8 billion valuation, more than doubling its valuation from the roughly $1.5 billion level reported earlier in the year. The latest financing underscores the growing investor interest in securing increasingly AI-driven cloud environments, while putting Shachar among the more closely watched CEOs in cybersecurity. 2. Rob Gurzeev, CyCognito Rob Gurzeev is CEO and co-founder of CyCognito, a leading attack surface management (ASM) platform. Rob has spent his early career on the attacker's side of the problem, previously leading offensive security development for private-sector organizations and intelligence agencies. Today he and his team help enterprises reduce external risk using proprietary AI-powered technologies that simulate adversary activity, from reconnaissance through the full attack chains. This puts Gurzeev at the center of the debate over how enterprises should answer advances in offensive AI, and the new classes of risk AI adoption creates. 3. Tina D’Agostin, Alcatraz AI Tina D’Agostin leads Alcatraz AI, which applies AI-powered facial authentication to physical access control. Her background spans more than 25 years in security technology and solutions, including leadership at Johnson Controls. In 2026, Alcatraz raised a $50 million Series B, while the company reported significant growth in data-center and enterprise