Proofpoint has inked a deal to acquire Varonis, a $6.3 billion all-cash purchase, combining human and AI cybersecurity with data protection. The transaction, announced October 15, 2026, is expected to close in the first half of 2027, subject to shareholder approval, regulatory clearance, and customary closing conditions. The price represents a 52% premium to its June 22 closing price of $32.71, before initial sale rumors, and a 17% premium to its September 1 closing price of $42.35, before additional media speculation.

Proofpoint Acquires Varonis in $6.3 Billion Deal Companies aim to create a unified platform that detects sensitive information, manages access by people and AI systems, and prevents data loss.

Varonis offers automated visibility and control over critical data, along with AI security features covering code to runtime. As enterprise AI agents access and interact with sensitive information across interconnected systems, security teams must have visibility into what these agents can reach and how they use their access. Proofpoint CEO Sumit Dhawan emphasized that integrating security signals would help customers better identify and respond to risks more effectively.

Thoma Bravo, which owns Proofpoint, is providing committed equity financing and has secured debt financing commitments. Utilize ANY.RUN to streamline threat investigations and reduce manual effort, empowering 16,000+ SOC teams.