Booz Allen Hamilton has now closed its acquisition of Defy Security, solidifying its place as a prominent cybersecurity services provider that leverages cutting-edge technology. The company first revealed its plans for the acquisition on February 17, 2026, bringing together the strength of Defy’s enterprise customers and security services with the experience of Booz Allen in both commercial and federal cyber operations.
With this merger, the two companies will be well-positioned to offer full-service cybersecurity products, catering to U.S. and global clients facing increasingly complex cyber threats. Together with Booz Allen’s innovative AI-nativ cyber product line called Vellox™, clients will receive machine-speed automation enabled by training models based on the skills of top-notch 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.
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“Booz Allen and Defy share a commitment to growth, collaboration, and technical excellence,” said Justin Domachowski, founder and CEO of Defy Security. “We look forward delivering tremendous value to customers together as we set a new standard for enterprise cybersecurity.”
Defy Security will operate as a wholly owned subsidiary of Booz Allen, continuing to serve key industries including financial services, healthcare, manufacturing, and retail. The transaction was supported by leading advisory firms, including AGC Partners, PwC, King & Spalding, and Oliver Wyman for Booz Allen, while Defy Security was advised by J.P. Morgan Securities LLC and Choate, Hall & Stewart LLP, with backing from Sverica Capital.