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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.”

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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

Written By

Eduard Kovacs (@EduardKovacs) is senior managing editor at SecurityWeek. He worked as a high school IT teacher before starting a career in journalism in 2011. Eduard holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering.

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