RunSybil is an AI-native offensive security platform founded in 2023. The company has raised $40 million to develop automated application security testing capabilities that replicate the reasoning of elite human security researchers. Its founding team includes a former OpenAI security hire and Meta's Offensive Security Tech Lead, alongside security leaders from Mandiant, NCC Group, Trail of Bits, and Palantir.
The company's core product, Sybil, is an autonomous AI agent that continuously tests applications and infrastructure for exploitable vulnerabilities. Operating as a black-box solution without requiring source code access, Sybil dynamically explores systems, chains vulnerabilities, and probes authentication boundaries to identify real attack paths. The platform focuses on offensive security, vulnerability research, and black-box security testing within the application and enterprise security domains.
RunSybil's stated mission is to automate hacker intuition and make advanced offensive security capabilities accessible to defenders. The technical work spans AI, vulnerability research, and adversarial testing methodologies, positioning the company at the intersection of artificial intelligence and cybersecurity.
