Overview
Capital One is a major US bank and technology organization. In July 2026 it open-sourced VulnHunter, an agentic AI AppSec tool under Apache 2.0.
Recent Developments
- 2026-07-17: Released VulnHunter OSS — attacker-first analysis + falsification engine on Claude Opus 4.8 / Claude Code (2026-07-18-capital-one-vulnhunter-official, 2026-07-18-capital-one-vulnhunter-open-source)