◆ Attack Surface & Exposure Management

Tenable Attack Surface Management

2026-07-16-4f67cb2f commercial

Tenable Attack Surface Management discovers and monitors an organization's internet-facing assets, identifying exposures and vulnerabilities across the external attack surface.

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Summary

Tenable Attack Surface Management is a commercial exposure-management service, run as a hosted platform, that continuously maps an organization's internet-facing assets from the outside in. Rather than relying on agents or asset lists submitted by internal teams, it discovers what is actually reachable from the internet, then applies subscriptions that flag specific technologies for closer inspection — for instance, one built-in subscription inventories external-facing Microsoft SharePoint Server instances so a team can quickly check exposure to SharePoint-targeting CVEs without hunting for those assets manually. This fits security teams and vulnerability-management owners who need visibility into shadow IT and forgotten infrastructure rather than developers managing individual applications.

Tenable Attack Surface Management discovers and monitors an organization's internet-facing assets, identifying exposures and vulnerabilities across the external attack surface.

How Tenable Attack Surface Management helps

Which internet-facing assets belong to us but were never registered with IT?

crawls the internet from the outside in and maps hosts, domains, and services that resolve back to the organization, regardless of whether any internal team submitted them

Which of our external assets are running SharePoint Server and exposed to its known CVEs?

applies the built-in SharePoint subscription to flag every external-facing instance it finds, giving a ready inventory instead of requiring a manual hunt across the network

Do we have shadow IT that our internal records don't account for?

continuously re-scans the external attack surface and surfaces reachable infrastructure that never appeared on an asset list, rather than trusting what internal teams reported

Which technologies on our perimeter deserve closer inspection right now?

groups discovered assets by subscriptions targeting specific technologies, letting a team pull just the slice relevant to a new threat instead of reviewing the whole surface

Has our external footprint changed since the last time we looked?

keeps mapping assets on an ongoing basis from outside the network, so newly reachable hosts or services show up without waiting on internal reporting

Release-note detail over time

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Website history

tenable.com, every change

Tenable's home page and 40 more pages as they looked each month from September 2021 to October 2026: 223 renders, 76 changes of tagline or palette. Step through them, play them, or put any two months side by side.

Website history is included with Researcher and Business.

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