Funding/M&A

Tenable to Acquire Vulcan Cyber for $150 Million

Tenable plans to acquire exposure management company Vulcan Cyber for roughly $150 million in cash and stock. 

2025 cybersecurity M&A

Cybersecurity giant Tenable (NASDAQ:TENB) announced on Wednesday that it plans on acquiring exposure management company Vulcan Cyber.

Tenable has agreed to buy Vulcan for roughly $150 million — $147 million in cash and $3 million in stock. The deal is expected to close in the first quarter of 2025.

Vulcan’s solutions will improve Tenable’s exposure management platform, including with capabilities that will enhance customers’ ability to consolidate exposures across their security stack, prioritize risks, and streamline remediation.

Customers will benefit from extended third-party data flows through integration with over 100 security products, AI-powered risk prioritization and other advanced AI capabilities, and automated remediation workflows that include optimization, advanced tagging and ticketing, and corrective guidance. 

“These capabilities aren’t just technical enhancements – they represent a fundamental shift in how organizations will manage cyber risks holistically into the future,” said Mark Thurmond, co-CEO and COO of Tenable. 

Thurmond added, “For example, while having a cloud security platform is critical on its own, its power is exponentially amplified when treated as part of a comprehensive exposure management approach. By uniting disparate tools and data under one roof, we’re providing security teams with a full-spectrum view of their attack surface, enabling them to prioritize what matters most and act decisively to address vulnerabilities.”

Advertisement. Scroll to continue reading.

Tenable last year acquired data protection firm Eureka Security for nearly $30 million. 

SecurityWeek tracked more than 400 merger and acquisition (M&A) deals in 2024, with financial details available for 58 transactions, for a total disclosed value of $50.4 billion. A detailed M&A report will be published in the coming days. 

Related: Tenable CEO Amit Yoran Dead at 54

Related: Cybersecurity M&A Roundup: 37 Deals Announced in December 2024

Related: Cisco to Acquire Threat Detection Company SnapAttack

Related: Arctic Wolf Buys Cylance for $160M Plus Stock From BlackBerry, Which Bought It for $1.4B

Related Content

Artificial Intelligence

Opaque Systems has developed technology that lets AI systems use sensitive data while keeping it protected by the underlying hardware.

Data Protection

The Thoma Bravo-owned Proofpoint will acquire Varonis in an all-cash transaction and Varonis will become a private company.

Funding/M&A

The all-stock deal brings Elisity’s least-privilege access technology into IonQ’s security portfolio.

Data Protection

Financials have not been disclosed, but the estimated cost is in the tens of millions of dollars.

Funding/M&A

Fortinet will use Virtue AI technology to enhance its AI security portfolio, including for AI models, applications, and agentic systems.

Fraud & Identity Theft

The payments giant says BioCatch’s behavioral and device intelligence will help financial institutions combat account takeovers, scams and other forms of digital fraud.

Funding/M&A

The acquisition will add approximately 65 cybersecurity professionals to Bank of America’s operations in the United Kingdom.

Identity & Access

The deal extends Okta's reach beyond identity management and into the realm of security operations, positioning the company to compete more directly on identity...

Copyright © 2026 SecurityWeek ®, a Wired Business Media Publication. All Rights Reserved.

Exit mobile version