Sayooj B Kumar
Senior Security Engineer, CRED
Sayooj B Kumar is a passionate security researcher and engineer with a keen focus on API and web application security. He currently works as a Security Engineer at CRED, where he focuses on providing end-to-end product security and conducts research to enhance SAST platforms and their integration into day-to-day security operations. From the early days of his cybersecurity journey, Sayooj has been actively involved in CTF competitions, leading team bi0s to become one of the top-ranking teams. In his spare time, he enjoys diving into vulnerability research, bug bounty hunting, and tackling CTF challenges. His interests span various areas, including client-side security and side-channel attacks, where he continually expands his expertise. In addition to his professional work, Sayooj has helped secure multiple organizations and contributed to several open-source applications. Some of his notable contributions include:Securing StackOverflow, earning a spot in their Hall of Fame, Enhancing
Events Sayooj B Kumar has spoken at
- Black Hat Europe 2026 7 December 2026 – 10 December 2026