Booz Allen Hamilton has signed a definitive agreement to acquire Defy Security as a wholly owned subsidiary. The transaction, expected to close in the first quarter of fiscal year 2027, subject to approvals, aims to broaden cybersecurity services for enterprises across financial services, healthcare, manufacturing, energy, retail, and technology sectors. Defy Security’s customer relationships

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and sales expertise will combine with Booz Allen’s technical capabilities to deliver integrated cyber products and services, including the firm’s AI-powered malware analysis tool Vellox Reverser. The acquisition will also support Booz Allen’s commercial expansion in the UK and European Union by providing international clients access to enhanced security offerings.

Andrew Turner, Executive Vice President and Head of Booz Allen’s Global Commercial Business, said, “Together, Booz Allen and Defy Security will unlock new market opportunities, accelerate innovation, and help our customers protect their most critical assets in an increasingly fast-paced threat environment.” Justin Domachowski, Founder and CEO of Defy Security, added, “Combining Booz Allen’s deep technical qualifications and global reach with our leading cyber solutions and talent opens incredible opportunities to support global customers in new ways.” Defy Security, headquartered near Pittsburgh with an additional California office and about 100 employees, will strengthen Booz Allen’s end-to-end cybersecurity portfolio while maintaining compliance and oversight standards. Terms of the transaction were not disclosed.

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