api-security
(8)
Yisi Gross
Yisi Gross (Yisrael Gross) is an Israeli-rooted, New York-based technology entrepreneur and investor. He co-founded L7 Defense (now ammune.ai), an AI-driven API security company that raised Series A backing from TRUMPF Venture and Quick Heal, and today works as a Managing Partner at TYH Investments, backing early-stage high-tech startups. He built his reputation on the unglamorous frontier of API-borne attacks, arguing that autonomous, machine-learning defense - not human-tuned rules - is the only way to keep pace with modern cyberattacks.
Brian Silverstein
Brian Silverstein is the founder and CEO of MirrorTab, a San Francisco cybersecurity company that treats the browser as the new battleground and tries to take it off the table entirely. Using server-side isolation, MirrorTab strips the client-side attack surface so malware, malicious extensions, and bots never touch the real code, data, or APIs behind a web session. Before MirrorTab he was an early co-founder and CTO of Honey, the shopping-rewards browser extension acquired by PayPal, and an engineer at Apple, Nest, Broadcom, and Freescale. A Cornell-trained electrical engineer with eight patents, he raised an $8.5M seed in 2025 led by Valley Capital Partners with GV and others.
Dan Temkin
Dan Temkin is a Senior Technical Product Marketing Manager at Kong (formerly Mashape), one of the world's leading API management platforms. With over a decade of experience in API strategy spanning roles at IBM and Kong, Temkin sits at the intersection of complex distributed systems and the business language needed to explain them. Based in Madison, Wisconsin, he shapes how enterprises think about API security, AI governance, and the economics of running LLMs at scale - authoring widely-read Kong blog posts, speaking at Apidays and AWS re:Invent, and helping translate the architecture of Kong's $424M-funded platform into decisions that matter to engineering and executive teams alike.
Ivan Novikov
Ivan Novikov is the founder and CEO of Wallarm, an AI-powered API security platform that has raised over $70 million in funding including a $55M Series C in 2025. With 24+ years in cybersecurity, he is recognized as the inventor of memcached injection attacks and a pioneer of SSRF research, having earned bug bounty awards from Google, Facebook, Twitter, Tesla, and Yandex. A Y Combinator S16 alumnus with a physics background from Moscow State University, Novikov transformed hands-on offensive security expertise into a company protecting APIs for enterprises worldwide.
Shay Levi
Shay Levi is the Co-Founder and CEO of Unframe, an enterprise AI platform that delivers working AI solutions to large organizations in days rather than months. A Unit 8200 alumnus, he previously co-founded Noname Security, scaling it to $40M ARR and a $500M acquisition by Akamai in 2024. Undeterred, he immediately founded Unframe in January 2024, which has since reached $100M in total contract value, raised $100M in total funding, and earned the #2 spot on Calcalist's 50 Most Promising Startups of 2026.
Stepan Ilyin
Stepan Ilyin is the Co-Founder and COO of Wallarm, a San Francisco-based API and application security company that raised $55M in Series C funding in 2025. A former whitehat hacker and Bauman Moscow State Technical University graduate, he co-founded Wallarm in 2013 alongside Ivan Novikov and others, with the company graduating from Y Combinator's S16 batch. Wallarm now protects Fortune 500 enterprises with AI-powered API security, real-time threat detection, and CI/CD-integrated vulnerability management. Ilyin has authored over 500 publications on DevSecOps, API security, and AI threat prevention, and is a recognized conference speaker at Black Hat, RSA, and similar venues.
Gadi Bashvitz
Gadi Bashvitz is the Co-founder and CEO of Bright Security (formerly NeuraLegion), a San Rafael-based developer-centric Dynamic Application Security Testing (DAST) platform. A veteran of the Israeli Defense Forces' elite Unit 8200, he brings 25+ years of cybersecurity, product, and go-to-market experience to his mission of making application security accessible to every developer. Under his leadership, Bright Security raised a $20M Series A in 2022 and launched the Bright STAR autonomous security testing and remediation platform at RSA Conference 2025, achieving approximately 85% auto-remediation rates for its customers.
Jonathan DiVincenzo
Jonathan DiVincenzo is the CEO and Co-Founder of Impart Security, a San Francisco-based AI-native runtime protection platform for applications, APIs, and LLM workloads. A veteran of Signal Sciences - where he served as VP of Product through the company's $825M acquisition by Fastly - DiVincenzo founded Impart in 2021 alongside Marc Harrison and Brian Joe to tackle what they saw as the broken 'last mile' of application security. His platform has deployed over 2,400 security rules across enterprise customers, cutting deployment time from 18 days to 45 minutes. In June 2025, Impart raised a $12M Series A led by Madrona Ventures.