Proofpoint has entered into a definitive agreement to acquire Varonis, a data and AI security company. The transaction amount was not disclosed in the sources.
According to the source, the combination will establish what it describes as the industry's largest data and AI cybersecurity organization, bringing together distinct strengths to deliver a unified platform for protecting people, data, and AI.
Proofpoint CEO Sumit Dhawan shared details of the news and, in the source's words, how the move will redefine security for the AI-powered enterprise.
The deal was reported on October 15, 2026. No closing date, financing details, advisers, or further terms were provided in the sources.