Tenable Ranks #1 in Device Vulnerability and Exposure Management for Eighth Consecutive Year

IDC’s 2026 market share report confirms Tenable’s multi-year lead as AI-driven exposure management demand accelerates.

Rhea-AI Summary

Tenable (TENB) has been ranked first in worldwide market share for device vulnerability and exposure management in IDC’s August 2026 Market Shares report.

The report states that Tenable holds 24.6% share of the global market, nearly $260 million ahead of its nearest competitor. Tenable attributes this leadership to ongoing innovation in the Tenable One Exposure Management Platform, including autonomous, always-on Tenable Hexa AI capabilities, expanded AI exposure coverage, application security integrations, and continuous security control validation. The company is also working with OpenAI and Anthropic and has enabled Claude Mythos 5 within Tenable One.

Positive

• 24.6% worldwide market share in device vulnerability and exposure management, about $260 million ahead of the nearest competitor

Negative

• None.

Market Context

The Sept. 8 Claude Mythos 5 announcement had a recorded -1.58% 24-hour reaction, while the Sept. 3 O...

Analysis

The Sept. 8 Claude Mythos 5 announcement had a recorded -1.58% 24-hour reaction, while the Sept. 3 OpenAI collaboration recorded -0.70%; both involved AI platform expansion referenced here.

Key Figures

Worldwide market rank: #1 Market share: 24.6% Lead over nearest competitor: Nearly $260 million +1 more

Worldwide market rank

#1

Device vulnerability and exposure management market

Market share

24.6%

Worldwide device vulnerability and exposure management market

Lead over nearest competitor

Nearly $260 million

Worldwide device vulnerability and exposure management market

Consecutive leadership

Eight years

Worldwide market-share leadership

Historical Context

3 past events · Latest: Sep 08

3 events

1. Sep 08

   Claude Mythos integration

   24h Move

   -1.6%

   Claude Mythos 5 integration expanded AI-powered exposure analysis within the Tenable One platform.

2. Sep 03

   OpenAI collaboration

   24h Move

   -0.7%

   OpenAI GPT cyber models supported inspection of community-built AI components before enterprise deployment.

3. Aug 26

   Joint cybersecurity research

   24h Move

   +2.6%

   Joint research linked exposure data with runtime detection across targeted vendor ecosystems and vulnerabilities.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

exposure management, device vulnerability and exposure management

2 terms

exposure management technical

"Exposure management is a fundamental and necessary shift in how businesses perceive and reduce risk"

Exposure management is the ongoing process a business or investor uses to find, measure, and control the ways losses could happen from market moves, counterparty problems, cash shortages or operational failures. It matters because it reduces the chance that an unexpected event wipes out value—like steering a ship to avoid storms—so investors can better predict potential losses, protect returns, and align risk with their goals and rules.

device vulnerability and exposure management technical

"ranked first in worldwide market share in the IDC Worldwide Device Vulnerability and Exposure Management Market Shares report"

An ongoing set of practices and tools to find, evaluate, prioritize and fix security weaknesses in an organization’s physical and virtual devices — including servers, workstations, network equipment, IoT gadgets and their software. It combines asset inventory, vulnerability scanning, risk scoring, patching and configuration management to reduce the chance a flaw is exploited. Investors care because poor management increases the risk of outages, regulatory fines, breach costs and reputational damage, like unlocked doors raising the odds of a break‑in.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Tenable credits market share leadership to continued platform innovation, including agentic AI advancements and demand for securing AI environments

COLUMBIA, Md., Sept. 10, 2026 (GLOBE NEWSWIRE) -- 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.

Media Contact:
Tenable
tenablepr@tenable.com

FAQ

What does IDC highlight about Tenable’s position in the exposure management market?

The IDC Worldwide Device Vulnerability and Exposure Management Market Shares report describes Tenable as the clear market leader, reporting that it retained 24.6% share of the worldwide market and was nearly $260 million ahead of its nearest competitor.

Which recent platform advancements does Tenable link to its market share leadership?

Tenable links its position to enhancements in the Tenable One Exposure Management Platform, including autonomous, always-on capabilities in Tenable Hexa AI, expanded AI exposure coverage across major AI platforms and developer tools, extended coverage into application security environments, and continuous security control and validation capabilities.

How is Tenable collaborating with AI leaders like OpenAI and Anthropic?

Tenable participates in the OpenAI Daybreak Defense Network and Anthropic’s Project Glasswing, and has made Claude Mythos 5 available within Tenable One to help customers understand cyber risk, prioritize remediation, and defend against evolving cyberattacks.

Where can organizations find more information about the Tenable One Exposure Management Platform?

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