Proofpoint to Acquire Israeli-Founded Varonis in $6.3 Billion Deal

U.S. cybersecurity firm Proofpoint will acquire Israeli-founded Varonis Systems in a $6.3 billion all-cash deal, combining Proofpoint’s communication security with Varonis’ data protection technologies to enhance AI-related corporate data security. The acquisition, subject to approvals, boosts Proofpoint’s reach to over 16,000 enterprises worldwide and integrates data, identities, and AI protections into a unified platform.

This Wire brief sits within Fusion42's coverage of Cybersecurity, and 5 sources have reported it between 17 Oct 2026 and 24 Oct 2026.