Proofpoint to acquire Varonis Systems for about $6.3 billion in all-cash data security deal
Proofpoint, owned by private equity firm Thoma Bravo, agreed on Thursday to acquire Varonis Systems in a cash transaction valued at roughly $6.3 billion. The deal combines Proofpoint's people-centric protection (phishing, fraud and email-borne attacks) with Varonis' data security capabilities, which map where sensitive data resides, who can access it and how it is used. Proofpoint CEO Sumit Dhawan framed the deal as a response to AI-driven threats from outside the enterprise and to insider risk created by AI agents with broad access to sensitive data. The transaction continues an acquisition pattern for both companies: Proofpoint bought Acuvity (AI security) in February and Hornetsecurity (reportedly over $1 billion), while Varonis bought AllTrue.ai for $150 million. The deal was approved unanimously by Varonis' board and is expected to close in the first half of 2027, subject to shareholder and regulatory approvals. This is industry and business news with no direct threat to defenders.
Technical Details
- Proofpoint cites 3.4 million customers, 2.37 trillion emails scanned annually, 410 billion data security events ingested and more than 13,000 sensors across 105 countries.
- These signals feed Proofpoint's Knowledge Graph, which the companies plan to combine with Varonis' sensitive-data visibility to discover and remediate risks at machine speed.
- The companies state they will maintain open integrations across the broader cybersecurity ecosystem and pursue vendor consolidation.
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Proofpoint to acquire Varonis Systems for about $6.3 billion in all-cash data security deal
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Proofpoint, owned by private equity firm Thoma Bravo, agreed on Thursday to acquire Varonis Systems in a cash transaction valued at roughly $6.3 billion. The deal combines Proofpoint's people-centric protection (phishing, fraud and email-borne attacks) with Varonis' data security capabilities, which map where sensitive data resides, who can access it and how it is used. Proofpoint CEO Sumit Dhawan framed the deal as a response to AI-driven threats from outside the enterprise and to insider risk created by AI agents with broad access to sensitive data. The transaction continues an acquisition pattern for both companies: Proofpoint bought Acuvity (AI security) in February and Hornetsecurity (reportedly over $1 billion), while Varonis bought AllTrue.ai for $150 million. The deal was approved unanimously by Varonis' board and is expected to close in the first half of 2027, subject to shareholder and regulatory approvals. This is industry and business news with no direct threat to defenders.
Technical Details
- Proofpoint cites 3.4 million customers, 2.37 trillion emails scanned annually, 410 billion data security events ingested and more than 13,000 sensors across 105 countries.
- These signals feed Proofpoint's Knowledge Graph, which the companies plan to combine with Varonis' sensitive-data visibility to discover and remediate risks at machine speed.
- The companies state they will maintain open integrations across the broader cybersecurity ecosystem and pursue vendor consolidation.