Booz Allen Hamilton has finalized its acquisition of Defy Security as part of a push to deliver technology-driven cybersecurity platforms across federal and commercial markets.
As Booz Allen advances its cyber capabilities with the Defy Security acquisition, government and industry leaders are continuing the conversation on emerging threats and next-generation defenses. Sign up now for the 2026 Cyber Summit on May 21 and hear experts as they explore the technologies and strategies shaping the future of cybersecurity.
Booz Allen said Tuesday Defy Security will initially operate as its wholly owned subsidiary.
The combined organization will offer end-to-end cyber capabilities, including Booz Allen’s artificial intelligence-native cyber product suite, Vellox, designed to enable faster threat detection and response through machine-speed automation.
The transaction was first announced in February.
What Is Defy Security?
Defy Security delivers cybersecurity technology products and services to enterprise customers across financial services, healthcare, manufacturing and retail sectors.
The Pennsylvania-based company brings an established customer base, sales infrastructure and vendor ecosystem that complement Booz Allen’s cyber expertise across commercial and federal missions.
Defy Security also operates in San Ramon, California, and employs approximately 100 cyber engineers, solution architects and salespeople.
What Did Booz Allen & Defy Security Executives Say About the Transaction?
“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, said both companies share a focus on growth, collaboration and technical excellence.
He added that the integration will position the combined business to deliver greater value to customers and set a higher standard for enterprise cybersecurity.
Transaction Details & Advisers
Booz Allen engaged AGC Partners as its exclusive financial M&A adviser, PwC as accounting and tax adviser, King & Spalding as legal adviser, and Oliver Wyman for strategic advisory services.
J.P. Morgan Securities and Choate, Hall & Stewart acted as Defy Security’s exclusive financial adviser and legal adviser, respectively. Private equity firm Sverica Capital backed Defy Security in the transaction.
How Does the Transaction Align With Booz Allen’s Broader Cyber Strategy?
The acquisition aligns with Booz Allen’s ongoing investment in AI-driven cyber platforms such as its Vellox suite, which uses models trained on adversary behavior to detect and counter threats at machine speed.
In an Executive Spotlight interview, Booz Allen Executive Vice President Brad Medairy discussed how the threat landscape is becoming more aggressive and complex, with nation-state actors leveraging cyber capabilities to target critical infrastructure and gain strategic advantage. He also noted that another area where artificial intelligence is making an impact is accelerating vulnerability discovery.
He cited Vellox Reverser, an agentic AI-powered malware reverse engineering product designed to speed up threat response.
