Tenable
Know Every Asset First.
Everything Else Follows.
Tenable grew out of Nessus, the scanner that made vulnerability assessment ordinary. The platform now extends that discipline across cloud, identity, operational technology and web applications, on the principle that you cannot defend what was never on the inventory.
Schedule an Exposure ReviewThe Awkward Assets Count Too
Modern estates are not just servers and laptops. Cloud resources appear and disappear within a day, identity systems carry permissions nobody reviews, and industrial equipment sits on the network running software from a decade ago. Each of these is an exposure, and each needs a different assessment method.
One Inventory, Several Methods
| Asset type | Typical blind spot |
|---|---|
| Traditional infrastructure | Low |
| Cloud resources | High |
| Identity and permissions | High |
| Web applications | Medium |
| Operational technology | Very high |
The scanning engine underneath is the one most security practitioners learned on, which makes findings easy for an auditor or a consultant to interpret.
Build The Inventory
The first exercise is establishing what exists, which is where most exposure turns out to be hiding.
Talk to an ExpertEquipment That Cannot Be Patched
Manufacturing and building systems frequently run software that cannot be updated without voiding a warranty or stopping production. Assessing them passively, without the active probing that can disrupt them, is a genuine specialism rather than a checkbox.
Chains Matter More Than Items
A single finding is rarely the whole risk. What makes an estate compromisable is a sequence: a reachable server with a moderate flaw, an over-permissioned account on it, and a route from there to something valuable. Assessing identity alongside infrastructure is what makes those chains visible instead of leaving three teams each looking at one link.
Nobody is breached by a spreadsheet of findings. They are breached through the asset nobody listed.Why discovery precedes assessment.
The Inventory Is Always Out Of Date
Asset registers are written once and decay immediately, because the estate changes faster than anybody updates a document.
Cloud Moves Too Fast For Paper
A developer can create infrastructure in minutes and forget it exists by the following week. It still runs, it still costs money, and it is still reachable. Continuous discovery is the only approach that keeps pace with that.
Permissions Are Invisible Exposure
An account with far more authority than its holder needs is an exposure even with no software flaw involved. Looking only at unpatched software misses an entire category of risk that attackers actively prefer.
The Network Has Machines On It
Building controls, cameras, printers and production equipment are all computers with network connections and long lifespans. They are rarely in scope for anyone's patching process, and they are frequently the way in.
Who This Is Built For
A Strong Fit
Estates with genuine variety: cloud alongside on-premises, industrial or building systems, or a compliance regime demanding documented assessment. The breadth is the reason to choose it, and it is real rather than marketed.
Possibly More Than You Need
An organization with fifty laptops, cloud email and nothing else does not need exposure management across five asset classes. A simpler scanner, or the vulnerability reporting already included in an endpoint product, will answer the same question for considerably less.
Ask For A List Of Everything On The Network
If that list cannot be produced, and it usually cannot, then the exposure of most interest is the part nobody can currently see.
Review Your Attack SurfaceGet in touch with Your Company
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