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Understand what the platform needs to support
Continuous Threat Exposure Management (CTEM) is an operating model supported by technology. Its five stages are scoping, discovery, prioritization, validation, and mobilization. A platform can support some stages directly while relying on other tools, manual work, services, or planned features for the rest, so evaluate the actual implementation rather than the product category.
Scoping starts with the services and assets that matter most, the boundary of the organization’s attack surface, and measurable goals. Discovery builds an evidence-backed record of exposures. That record should extend beyond CVEs where relevant: misconfigurations, identity weaknesses, SaaS posture, and third-party integration risks may all affect business risk. Prioritization adds threat evidence and business context; validation checks whether important exposures are practically exploitable and whether controls or fixes work; mobilization assigns and tracks the resulting work.
Vulnerability management remains an important capability, but CTEM is broader in scope and operating model: it can bring non-CVE exposures, attack paths, business context, validation, and cross-team remediation into a recurring loop. High scan volume does not by itself prove adequate coverage, and a high risk score is not the same as a validated business risk.
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Evaluate the capabilities that determine fit
Lifecycle coverage
Ask which of the five stages the platform supports today and how each is delivered. For every stage, identify dependencies on external products, manual procedures, vendor services, or roadmap items. Record what is shipped and usable separately from what is promised; a roadmap entry is not a current capability.
Asset and exposure visibility
Build a coverage checklist from your environment, not a generic vendor inventory. Include relevant external assets, cloud resources, identities, applications, SaaS services, and third parties. Then test whether the candidate can reconcile records from your actual sources.
- Can it connect an exposure to a stable asset identity and an accountable owner?
- How does it normalize and deduplicate conflicting records?
- Can you see when an asset or finding was last observed, and how are stale records handled?
- Can you trace the evidence behind an exposure and distinguish missing data from a clean result?
Contextual prioritization you can inspect
Ask the vendor to demonstrate how asset criticality, business-service relationships, reachability, exploit likelihood or evidence, and compensating controls affect a finding’s position. Require a plain explanation of why the finding ranks where it does, which inputs are missing, and how policy can be tuned to fit your remediation capacity. A composite score is useful only when its inputs and limitations are visible.
Validation and safety
“Validation” can mean different things. Establish whether a product tests exploitability, attack-path reachability, control performance, fix effectiveness, or some combination. For each test, ask whether it is passive or active, what approvals and safety limits apply, what systems could be affected, and what evidence is retained. Do not infer equivalence between platforms from the word validation alone; the available evidence does not independently compare vendors’ validation methods.
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Remediation workflow
Follow selected findings from assignment through resolution. Check that the platform can route work to the right owner, apply prioritization targets or SLAs, create and update tickets, manage exceptions, and verify closure. Not every exposure can be fixed with a patch, so confirm that the workflow also supports suitable owners and mitigations for non-patchable issues.
NIST defines enterprise patch management as “the process of identifying, prioritizing, acquiring, installing, and verifying the installation of patches, updates, and upgrades throughout an organization” in SP 800-40 Rev. 4, published April 6, 2022. CTEM remediation should account for that patch lifecycle while also handling work that falls outside patching.
Integration quality
Check both directions of data flow: ingestion from your scanners, asset sources, cloud and identity tools, and outbound work to the issue-tracking or IT service-management systems your teams use. A connector list does not establish that a particular workflow works. For each required connection, verify:
- which data and actions the connector supports, and whether it is native, API-based, partner-provided, or manual;
- API limits, field mapping, sync direction and timing, and required permissions;
- how failures and duplicate records are reported and handled; and
- whether resolved tickets or accepted mitigations are reflected back in the exposure record.
Vendor statements about integration breadth are not independent verification. Test the specific connectors and fields your teams depend on.
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- USB-A Hardware Key for All Devices - Works with USB-A ports on PC, Mac, Android, and other laptop/notebook device. Enables secure, cross-platform login with FIDO2.0 passkey support.
- FIDO Certified Security Key - Meets FIDO and FIDO2 standards. Works with Google, Microsoft, GitHub, Dropbox, and more. Please check service compatibility before purchase.
- Passwordless Login with Passkey - Supports passkey login via WebAuthn and CTAP2. Enjoy password-free sign-ins where supported. Not all websites or services currently support passkeys.
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Operational, governance, and commercial fit
Validate role separation, audit history, data handling and residency, deployment model, service levels, retention, reporting, and the staff effort needed to maintain connectors and business context. Compare these requirements with your organization’s policies and contract needs; the cited materials do not establish vendor contract terms or independently compare security controls.
For commercial comparison, request quotes on the same assumptions: asset counts, modules, environments, integrations, retention, support, and deployment. Pricing, package limits, and geographic availability are not established by the cited materials, so confirm them directly for your organization and region.
Interpret risk signals without mistaking them for business risk
Risk prioritization should bring threat evidence together with local presence, reachability, potential business impact, and compensating controls. No single external score answers all of those questions.
FIRST describes EPSS as a daily estimate, from 0 to 1, of the probability that a publicly disclosed CVE will be exploited in the wild during the next 30 days. It is an exploitation forecast, not a complete risk score: it does not establish that the affected asset exists in your environment, that it is reachable, how much harm exploitation could cause, or whether your controls change the outcome. Do not present an EPSS value as the probability of a breach in your organization.
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- Passwordless Login with PinPlex – Supports secure passkey login via WebAuthn and CTAP2 with added protection from PinPlex, a complex PIN system that enhances physical security.
- Multi-Layer Authentication Support – Includes PIV certificates and supports both TOTP and HOTP for strong 2FA/MFA coverage across enterprise and consumer apps.
CISA’s Known Exploited Vulnerabilities (KEV) catalog and EPSS indicate different things. KEV records confirmed exploitation; EPSS forecasts exploitation probability. Treat confirmed exploitation as a distinct and often more urgent signal, then weigh it alongside your own asset and control context.
In a demonstration, ask the vendor to show one real finding’s underlying evidence, the local context that changed its rank, the action taken, and how remediation was verified or a mitigation recorded. This is a useful evaluation test, not a claim that every platform provides those functions equally.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Run a proof of concept that makes vendors comparable
Use a scripted proof of concept (POC) with the same assets, representative findings, and work queues for every candidate. Agree on acceptance criteria before the demonstration so that a polished presentation cannot substitute for a working workflow.
- Set the boundary. Agree on the in-scope business services and assets, document success measures, and set an initial limit for the amount of remediation work the organization can absorb.
- Load representative data. Provide a known set of assets and findings, including at least one non-CVE exposure if that category matters to your organization. Reconcile the platform’s coverage against a trusted inventory.
- Challenge the prioritization. Select findings with different exploit evidence, asset importance, reachability, and compensating controls. Ask the vendor to explain each ranking and identify which inputs are absent.
- Trace work end to end. Follow selected high-priority findings from discovery through validation, assignment, and closure. Inspect ownership, validation evidence, the ticket or workflow, and the verification record.
- Classify each integration. Record whether it is native, API-based, partner-provided, manual, or unavailable. Mark current shipped capability separately from roadmap claims.
- Score against common criteria. Use identical use cases and acceptance criteria for every candidate. Have security operations, infrastructure, application, identity, cloud, and procurement stakeholders review the results because mobilization crosses team boundaries.
Use vendor examples as claims to verify, not as a market ranking
Vendor and project documentation can help you identify questions to ask, but it does not establish independent product performance. Tenable’s resource center lists CTEM program materials and selection resources; that establishes the availability of those materials, not independent validation of product claims.
Armis’s 2024 white paper describes Gartner’s five CTEM stages and positions Armis Centrix for workflows such as asset and exposure aggregation and ticketing. It is vendor-authored material, and the paper states that Gartner does not endorse any depicted vendor, product, or service. OpenCTEM’s roadmap is project documentation that illustrates declared features such as business-context scoping and transparent score inputs; it is not a comparative benchmark or proof that commercial products provide equivalent capabilities.
There is no safe, independently verified CTEM-wide benchmark statistic established here. In particular, do not repeat the visibility figure surfaced in the Armis paper as a Gartner finding: the reviewed passage does not establish sufficient original-source detail to support that attribution.
Quick Recap
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