Tenable® Holdings, Inc. (NASDAQ: TENB), the exposure management company, today announced that it has been ranked first in worldwide market share in the IDC Worldwide Device Vulnerability and Exposure Management Market Shares report (doc #US53903826, August 2026).

Exposure management is a fundamental and necessary shift in how businesses perceive and reduce risk in the AI era. Defenders have reached a crossroads: the volume of critical and complex threats has increased exponentially, and they have increasingly less time to assess and respond before AI-enabled attackers strike. The Tenable One Exposure Management Platform was purpose-built to address this challenge, helping customers better understand cyber risk, prioritize action and defend against evolving cyberattacks.

According to the IDC Market Shares report, “Tenable held its ground as the clear market leader, retaining 24.6% share in the worldwide device vulnerability and exposure management market, which is nearly $260 million ahead of its nearest competitor.”

Tenable credits its market share position to its ongoing platform advancements designed to unify visibility, deliver precise contextualized exposure intelligence, and accelerate and automate action across the enterprise. In recent months, Tenable introduced autonomous, always-on capabilities in Tenable Hexa AI, the agentic AI engine of Tenable One, expanded Tenable One AI Exposure capabilities to cover all major AI platforms and developer tools, expanded coverage into application security environments and extended its platform’s continuous security control and validation capabilities. 

Tenable is committed to actively shaping the future of AI-driven exposure management through continued platform innovation and strategic work with OpenAI and Anthropic. In addition to participating in both the OpenAI Daybreak Defense Network and Anthropic’s Project Glasswing, Tenable recently announced the availability of Claude Mythos 5 within Tenable One, helping customers better understand cyber risk, prioritize action and defend against evolving cyberattacks. 

"We believe our eight consecutive years of market share leadership reflect our commitment to delivering the continuous innovation that sets the standard for exposure management," said Mark Thurmond, co-chief executive officer, Tenable. "We’re empowering customers to transform their organization’s defense for the AI era by equipping them with the comprehensive visibility, advanced analytics and AI technology required to outpace today’s adversaries.”

“It can’t be overstated: exposure management is foundational and thus necessary to understand, validate and prioritize exposures before they can be exploited by AI-enabled attackers,” said Michelle Abraham, VP of Research, Security and Trust, IDC. “Boards, insurers and regulators are pushing security teams from conversations about the number of vulnerabilities to how much risk remains. Organizations that embrace exposure management principles can reduce risk, improve remediation efficiency, and demonstrate measurable progress to stakeholders.”

More information about the Tenable One Exposure Management Platform is available at: https://www.tenable.com/products/tenable-one 

About Tenable

Tenable® is the exposure management company, exposing and closing the cybersecurity gaps that erode business value, reputation and trust. The company’s AI-powered exposure management platform radically unifies security visibility, insight and action across the attack surface, equipping modern organizations to protect against attacks from IT infrastructure to cloud environments to critical infrastructure and everywhere in between. By protecting enterprises from security exposure, Tenable reduces business risk for over 40,000 customers around the globe. Learn more at tenable.com. 

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