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A3Sec CTEM is a commercial exposure management tool by A3Sec. Bitsight Exposure Management is a commercial exposure management tool by Bitsight. Compare features, ratings, integrations, and community reviews side by side to find the best exposure management fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
Mid-market and enterprise security teams drowning in unknown assets and exposure backlogs will see immediate value in A3Sec CTEM's continuous discovery paired with automated attack simulation; it forces prioritization by actual exploitability rather than CVE noise. The vendor's coverage across NIST ID.AM, ID.RA, and DE.CM reflects genuine strength in asset mapping and risk contextualization where most exposure tools leak. Skip this if your organization prioritizes incident response over exposure prevention or lacks the resources to act on continuous remediation workflows; A3Sec assumes you can operationalize findings at scale.
Mid-market and enterprise security teams drowning in third-party risk will get immediate value from Bitsight Exposure Management because it actually maps your vendor ecosystem continuously instead of relying on annual questionnaires. The platform covers six NIST CSF 2.0 functions across asset discovery, risk assessment, and supply chain oversight, with real-time alerts for compromised credentials and ransomware that hit in sub-minute timeframes. Skip this if your organization has fewer than 50 vendors or lacks dedicated resources to act on exposure findings; the tool surfaces problems faster than most teams can remediate them.
Managed CTEM service for continuous attack surface & threat exposure mgmt.
Platform for managing cyber exposure across attack surfaces and supply chains
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Common questions about comparing A3Sec CTEM vs Bitsight Exposure Management for your exposure management needs.
A3Sec CTEM: Managed CTEM service for continuous attack surface & threat exposure mgmt. built by A3Sec. headquartered in Spain. Core capabilities include Continuous asset discovery and mapping, including unknown assets, with a dynamic inventory, Real-time visibility into all assets and their exposure levels, Automated attack simulations to validate vulnerability exploitability..
Bitsight Exposure Management: Platform for managing cyber exposure across attack surfaces and supply chains. built by Bitsight. headquartered in United States. Core capabilities include External Attack Surface Management with automatic digital footprint mapping, Shadow IT and third-party vendor risk discovery, Continuous monitoring of vendor ecosystems including fourth-party vendors..
Both serve the Exposure Management market but differ in approach, feature depth, and target audience.
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