Cybersecurity M&A hits record 219 deals in H1 2026, led by Accenture's $4.175B AI security acquisition.

In the first half of 2026, cybersecurity mergers and acquisitions reached a record 219 deals totaling $9.1 billion, driven by growing enterprise consolidation and the maturation of AI security companies. The market saw a landmark $4.175 billion acquisition by Accenture of Dragos, NetRise, and runZero, marking the first $1 billion-plus deal of the year. This surge reflects a strategic shift where larger platform providers command premiums while smaller, less differentiated firms struggle. The trend signals a robust second half of 2026 with expectations for more mega-deals and continued AI security integration.