Cybersecurity M&A Roundup: 37 Deals Announced in October 2026

Summary

SecurityWeek tracked 37 cybersecurity M&A deals announced in October 2026. Notable deals include Absolute Security's acquisition of FirmGuard, Proofpoint's agreed acquisition of Varonis for roughly $6.3 billion in cash, and IonQ's agreed acquisition of Elisity in an all-stock deal worth up to $1.3 billion.

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