Booz Allen Hamilton (NYSE: BAH) announced it has completed its acquisition of cybersecurity firm Defy Security, according to a company statement. The transaction was previously announced on February 17, 2026.

Defy Security provides cybersecurity technology products and services to financial services, healthcare, manufacturing, and retail enterprises. The company will initially operate as a wholly owned subsidiary of Booz Allen Hamilton.

The combined companies plan to deliver cybersecurity solutions across U.S. and international commercial and federal markets, including Booz Allen's AI-native cyber product suite Vellox. The product pairs machine-speed automation with models trained by cyber operators.

"Today's AI-enabled threat environment moves at unprecedented speed. Joined with Defy Security, we can help more enterprises around the world innovate ahead of pervasive cyber threats and protect their most critical assets," said Andrew Turner, executive vice president and head of Booz Allen's global commercial business.

Justin Domachowski, founder and CEO of Defy Security, stated that both companies "share a commitment to growth, collaboration, and technical excellence."

Booz Allen retained AGC Partners as exclusive financial M&A advisor, PwC as accounting and tax advisor, King & Spalding as legal advisor, and Oliver Wyman for strategic industry advisory services. Defy Security retained J.P. Morgan Securities LLC as exclusive financial advisor and Choate, Hall & Stewart LLP as legal advisor.

Defy Security is backed by Sverica Capital, a technology-focused private equity firm.