Defy Security Acquired by Booz Allen Hamilton

Booz Allen Hamilton has completed its acquisition of Defy Security, which was previously announced in February 2026. The combination brings Defy Security’s cybersecurity technology products, enterprise customer base, and vendor ecosystem together with Booz Allen’s commercial and federal cyber capabilities.

Defy serves clients across financial services, healthcare, manufacturing, and retail. Defy will initially operate as a wholly owned subsidiary of Booz Allen, and the integration is intended to expand delivery of end-to-end, tech-enabled cyber solutions across U.S. and international markets.

A key element of the strategy is Defy’s AI-native cyber product suite Vellox, described as combining machine-speed automation with models trained by experienced cyber operators to respond to sophisticated threats.