RunSybil, founded in 2023, is building an AI-native offensive security platform designed to fundamentally change how organizations test their applications for vulnerabilities. The company has secured $40 million in funding to pursue its mission of automating the intuition and methodology of elite human security researchers, placing advanced offensive security capabilities directly in the hands of defenders.
The company's flagship product, Sybil, is an autonomous AI agent that continuously tests applications and infrastructure for exploitable vulnerabilities. It operates as a black-box solution - without requiring source code access - dynamically exploring systems, chaining vulnerabilities together, and probing authentication boundaries to identify real attack paths. The platform learns and improves with experience, representing the first comprehensive black-box security testing solution powered by AI agents.
RunSybil's team draws from the upper echelons of the security industry, with leadership and engineering talent assembled from organizations including Mandiant, NCC Group, Trail of Bits, and Palantir. The company's technical work spans AI agents, offensive security, vulnerability testing, and black-box security testing - areas where deep expertise and rigorous thinking are prerequisites, not differentiators.
