# Proofpoint Buys Varonis for $6.3B

> Proofpoint acquires data security firm Varonis for $6.3 billion in cash, expanding its AI-driven enterprise security platform.
- Title: Proofpoint Buys Varonis for $6.3B · SiliconANGLE | Shortify
- Summary: Proofpoint acquires data security firm Varonis for $6.3 billion in cash, expanding its AI-driven enterprise security platform. Proofpoint agreed to buy…
- Keywords: proofpoint, varonis, data security, ai security, acquisition, cybersecurity, nasa, technology, enterprise, Buys, SiliconANGLE
- Source: SiliconANGLE — https://siliconangle.com/2026/10/15/proofpoint-agrees-to-buy-data-security-company-varonis-for-6-3b-in-cash
- Author: Duncan Riley
- Published: 2026-10-15T22:48:38+00:00
- Read time: 1 min
- Topics: proofpoint, varonis, data security, ai security, acquisition, cybersecurity, nasa, technology, enterprise
## Proofpoint Agrees to Buy Varonis
Proofpoint Inc. agreed to purchase data security company Varonis Systems Inc. for $6.3 billion in cash.
## Deal Details
The transaction includes a 52% premium over Varonis’s pre-reporting stock price of $49.75 per share.
## Company Background
Varonis was co-founded in 2005 by CEO Yaki Faitelson and Ohad Korkus, specializing in AI-driven data access controls.
## Acquisition Context
Proofpoint has made several acquisitions since Thoma Bravo took it private for $12.3 billion in 2021.
## Integration Plan
The combined company will serve over 16,000 enterprises and integrate products and sales teams quickly post-close.
## Shareholder Approval
Varonis’s board approved the deal unanimously, with closing expected in early 2027 after regulatory and shareholder sign-off.
## Key takeaway

Proofpoint agreed to buy Varonis Systems Inc. for $6.3 billion in cash to integrate data mapping and access controls with its existing security products.