XBOW

Autonomous AI pentesting that proves what's exploitable, continuously

XBOW is a Seattle-based autonomous offensive security company, founded by Oege de Moor (former GitHub executive), that deploys AI agents to perform penetration testing at machine speed — discovering, chaining, and validating vulnerabilities in web applications and APIs without human testers. Its core design principle separates exploration from verification: AI agents explore attack paths creatively, but a finding is only surfaced to customers when deterministic validation has confirmed exploitability through controlled, non-destructive proof-of-concept execution. XBOW raised $155M+ across its Series B and Series C (with strategic participation from Accenture Ventures, NVIDIA Ventures, SentinelOne, and Samsung Ventures) and reached number one on the global HackerOne leaderboard in August 2025 — outranking thousands of human researchers. In March 2026 it announced integration with Microsoft Security Copilot and Microsoft Sentinel, embedding autonomous pentesting directly into the Microsoft security ecosystem.

Compliance

SOC 2

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Key Features

AI-only exploration with deterministic validation: Thousands of AI agents explore attack paths in parallel; findings are only accepted and reported when exploitability is confirmed through controlled non-destructive challenges — eliminating the false positives common in vulnerability scanners.
Attack path chaining: Goes beyond single-issue scanners by chaining vulnerabilities into full attack paths that represent how a real attacker would combine weaknesses — surfacing exploits that point-in-time tests and scanners never reach.
Continuous testing against live applications: Tests applications as they change rather than on an annual schedule, keeping pace with continuous software delivery rather than creating a gap between releases and security validation.
Pentest On-Demand: A self-service, fully automated penetration testing service delivering complete results within 5 business days from a URL submission, with no scoping calls, at a starting price of $4,000 per test — benchmarked to replace the traditional 35–100 day human-led pentest cycle.
Board and auditor-ready reporting: Every finding includes the actual reproducible exploit script and step-by-step remediation guidance, in formats accepted for SOC 2, ISO 27001, PCI DSS, and NIS2 compliance.
Microsoft Security ecosystem integration: XBOW Pentest Manager and Analysis Agents are embedded in Microsoft Security Copilot and Sentinel, allowing security teams to initiate tests and see findings alongside defensive data without leaving their Microsoft consoles.

Use Cases

For teams needing continuous security validation: A company shipping software frequently uses XBOW to test every significant release automatically, replacing a point-in-time annual pentest with continuous offensive coverage.
For compliance-driven pentest requirements: A company preparing for SOC 2 or ISO 27001 certification uses XBOW Pentest On-Demand to receive an auditor-ready report in days at a fraction of the cost of a traditional engagement.
For enterprise security teams integrating offensive insights: A SOC team using Microsoft Sentinel deploys XBOW’s Microsoft integration to see which attack paths were detected, which were missed, and where detection gaps exist — connecting offensive findings to defensive response.

Pricing MODELS

Enterprise

Pricing Summary

Enterprise continuous testing: custom-quoted. Pentest On-Demand: self-serve, starting at $4,000 per test, with results delivered within 5 business days. No scoping calls or professional services required for the on-demand tier.