Defy Security is a managed services firm focused on penetration testing, operational technology security, and security program management, headquartered in Canonsburg, United States, founded in 2017.
| Date | Round | Amount | Investors |
|---|---|---|---|
| 2020-11-17 | Seed | $8M | Undisclosed |
Defy Security was acquired by Booz Allen Hamilton for $400M (2026-02-17).
Data from The Signal by Return on Security — cybersecurity funding, M&A activity, and company intelligence.