Tenable versus Microsoft

“Good enough” from Microsoft is not good enough

With a record 1,360 flaws in 2024 and 25 actively exploitable zero-days in 2025, Microsoft is the most targeted vendor.1 Relying on its internal security is a conflict of interest; you need independent oversight. Tenable provides superior breadth and reliability for true exposure management across heterogeneous environments.

Why Tenable

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Want to see how Tenable can help your team find and fix critical cyber weaknesses that put your business at risk? Complete this form to get a custom quote or demo.

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Simulate Success

Why customers choose Tenable over Microsoft

Prioritize risk

Prioritize risk

Tenable Exposure View combines Tenable’s vulnerability priority rating (VPR) with an asset criticality rating (ACR) to objectively measure the risk of an asset, a business unit, or the whole organization.


Not included

Microsoft scores do not consider context like internal and peer benchmarking, assessment, and remediation maturity.

Not included

Microsoft security recommendations focus on configuration changes within their own stack leading to hundreds and thousands of suggestions.

Screenshot showing how to prioritize risk inside Tenable's Exposure View

Security beyond the endpoint

Security beyond the endpoint

Tenable has complete visibility and assessment of your entire attack surface.

Reducing cyber risk and ensuring compliance requires understanding across traditional IT to the cloud to operational technology.

Tenable’s ability to log on to network devices and check for configuration and setting significantly reduces the rate of false-positives.

Not included

Microsoft Defender Vulnerability Management coverage is limited to those endpoints that have an agent, and its network scanning capability is SNMP-based.

Not included

Microsoft has deprecated its Windows authenticated (credentialed) scans as of December 2025, creating a massive visibility gap for customers.

Coverage and accuracy

Coverage and accuracy

As of March 2026, Tenable Research has published more than 315K plugins covering over 116K CVEs. We continue to update and publish our vulnerability coverage and CVE count at tenable.com/plugins.


#1 in CVE coverage

#1 in zero-day research 1

#1 in vulnerability management

1 - Tenable blog link

Not included

Microsoft does not publish its CVE count.


153K K

Vulnerabilities assessed with 441,000+ plugins

814

Vulnerabilities disclosed by Tenable Research

< 24 hrs

Median time for coverage of high profile issues

Communicate risks

Communicate risk

Tenable enables communication by providing an extensive library of dashboards and reports to help facilitate communication with stakeholders such as senior leadership, IT and security colleagues, auditors, and the board.


Not included

Microsoft optimized reporting for its Microsoft ecosystem and lacks a unified exposure score across IT, OT, IoT, and multi-cloud environments.

Screenshot showing how to communicate risk inside Tenable's Exposure View

Simplified licensing and cost

Simplified licensing and cost

Tenable pricing and licensing removes “security math,” double-charging and financial penalties for premium features common for Microsoft.

Not included

Microsoft is notorious for a complex web of additional licenses or consumption-based fees to unlock product value.

Compare Tenable to Microsoft

Tenable Microsoft
Tenable
Included: Industry’s broadest vulnerability coverage
Vulnerability and coverage accuracy
Microsoft
Not included: Not published
Tenable
Included: Exposure view combines Tenable’s vulnerability priority rating with an asset criticality score
Prioritization
Microsoft
Not included: Does not consider important business context
Tenable
Included: Wide variety of assets - endpoints, network devices, operational technology (OT), cloud workloads, web apps
Scope of coverage
Microsoft
Not included: Limited to the endpoints with an agent and basic SNMP-based capability
Tenable
Included: Extensive library of dashboards and reports
Dashboarding and reporting
Microsoft
Not included: Lack of dashboards and reports
Tenable
Included: Integration and support for the third-party remediation tools, remediation workflows
Vulnerability management tool ecosystem
Microsoft
Not included: Minimal integration with remediation tools like BigFix
Tenable
Included: Agent-based and agentless
Scanning technologies
Microsoft
Not included: Lacks Windows authenticated scanning
Tenable
Included: A truly vendor-agnostic Exposure view
Vendor agnostic
Microsoft
Not included: Best if you are 100% Microsoft
Q4 2025 Analyst Report

Tenable is a Leader in the 2025 Gartner® Magic Quadrant™ for Exposure Assessment Platforms

Q3 2025 Analyst Report

Tenable named a leader in the IDC MarketScape Worldwide Exposure Management 2025 Vendor Assessment

See
Tenable
in action

See how Tenable can give your team the clarity to fix what matters, at the speed of AI.