XBOW Raises $120M Series C to Scale Autonomous AI-Powered Offensive Security Platform
Key Takeaways
- ▸XBOW raised $120M in Series C funding at a $1B+ valuation, positioning it as a category leader in autonomous offensive security
- ▸The platform uses AI reasoning and real-world adversarial workflows to continuously test applications at machine speed, addressing the gap created by AI-driven attackers outpacing traditional manual penetration testing
- ▸Founded by GitHub Copilot creator Oege de Moor, XBOW has already achieved market validation through HackerOne leaderboard success and enterprise deployments at Fortune 500 companies
Summary
XBOW, a leader in autonomous offensive security, announced a $120 million Series C funding round led by DFJ Growth and Northzone, valuing the company at over $1 billion. The funding comes as XBOW demonstrates that AI can operate continuously and at machine speed to identify vulnerabilities, addressing the growing threat landscape where attackers increasingly leverage AI for coordinated, large-scale assaults. The round includes participation from new investors Sofina and Alkeon Capital, as well as existing backers Altimeter, NFDG Ventures, and Sequoia Capital.
Founded in January 2024 by Oege de Moor—the creator of GitHub Copilot and GitHub Advanced Security—XBOW has already topped the HackerOne leaderboard and secured deployment at major security-forward enterprises. The company pairs autonomous AI systems with elite human hackers to train its platform to think and operate like real adversaries, enabling continuous security testing that traditional penetration testing cannot match. With this capital infusion, XBOW plans to accelerate enterprise market expansion, product innovation, and international growth while proving that autonomous systems can operate safely and effectively in live production environments.
- The company pairs autonomous systems with elite human hackers to ensure the AI is trained on real-world attack techniques and operates safely in production environments
Editorial Opinion
XBOW's $1B+ valuation reflects a critical market shift: as attackers leverage AI for continuous, scaled assaults, the defensive security industry must evolve beyond periodic manual testing toward autonomous, always-on security systems. The company's success—demonstrated through both technical achievements and enterprise adoption—validates that AI can operate responsibly in sensitive security contexts when paired with human expertise. This funding round signals that autonomous offensive security is no longer experimental but a mission-critical layer in enterprise defense, likely to reshape the cybersecurity industry's approach to vulnerability management.
