XBOW Raises $120M Series C to Scale AI-Powered “Autonomous Hacker”…

Team S · 2026-03-19T14:17:26.000Z

Seattle-based cybersecurity startup XBOW has secured $120 million in a Series C funding round, pushing its valuation beyond $1 billion as it accelerates the development of its AI-driven offensive security platform. The round was led by DFJ Growth and Northzone, with participation from new investors Sofina and Alkeon Capital, alongside existing backers Altimeter, NFDG Ventures, and Sequoia Capital. Founded by Oege de Moor, XBOW is building an “autonomous hacker” system-an AI platform that continuously simulates real-world cyberattacks to identify vulnerabilities at machine speed. Unlike traditional penetration testing, which is periodic and manual, XBOW enables continuous, intelligent security testing aligned with modern development cycles. The platform leverages advanced AI reasoning and adversarial workflows to detect and validate vulnerabilities in real time, helping organizations stay ahead of increasingly sophisticated AI-driven cyber threats. XBOW has already demonstrated strong technical capabilities, with its system previously reaching the top position on the HackerOne leaderboard, outperforming human security researchers-highlighting the growing role of AI in cybersecurity. With this latest funding, the company plans to scale its enterprise adoption, expand globally, and enhance its AI security infrastructure, positioning itself as a category leader in autonomous offensive security. As cyber threats evolve with AI, XBOW is at the forefront of a shift toward “AI vs AI” cybersecurity, where automated systems are deployed to counter increasingly automated attacks.

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XBOW Raises $120M Series C to Scale AI-Powered “Autonomous Hacker”… | Newnex