OT / ICS Cybersecurity & Asset Visibility Platforms buyer guide
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Home / OT / ICS Cybersecurity & Asset Visibility Platforms / Controller, logic & configuration change monitoring
OT / ICS Cybersecurity & Asset Visibility Platforms · OT Asset Visibility & Exposure Management
Controller, logic & configuration change monitoring
Detect or record PLC/controller mode, firmware, program, function-block, configuration, tag/write or other engineering changes that may affect operational integrity.
5 products evaluated4 supported1 partial / conditional0 not yet verified0 not supportedAvg evidence confidence 98%Security-related capability
Product support comparison
Recorded product facts are shown separately from buyer-specific recommendation scores. “Not yet verified” means evidence is incomplete; it does not mean the product lacks the capability.
| Product | Status | Confidence | Implementation | Evidence | Limitations / notes | Last verified |
|---|---|---|---|---|---|---|
| Supported | 99% | Not recorded | 1 source | CTD Operational Behaviors detect configuration downloads/uploads, firmware upgrades, mode/key-state changes and other industrial engineering operations. | Sep 19, 2026 | |
TO Tenable One OT Exposure Tenable | Supported | 99% | Not recorded | 1 source | Tenable detects controller start/stop, code edits, function-block changes, tag writes/deletes, snapshot operations and related configuration events. | Sep 19, 2026 |
MD Microsoft Defender for IoT Microsoft | Supported | 98% | Not recorded | 1 source | Defender for IoT operational alerts detect changes such as firmware version changes, PLC mode changes and unauthorized PLC code-change activity. | Sep 19, 2026 |
NN Nozomi Networks Platform Nozomi Networks | Supported | 98% | Not recorded | 1 source | Guardian includes explicit configuration-change alerts when changed configurations are uploaded to OT devices. | Sep 19, 2026 |
DP Dragos Platform Dragos | Partially Supported | 96% | Not recorded | 1 source | Dragos monitors OT communications and abnormal operational behavior, but a universal code-diff/configuration-control function for every controller family is not inferred from the reviewed sources. | Sep 19, 2026 |
Buyer research paths
Use this capability as one requirement inside the wider category evidence model. The links below are research and comparison paths, not a product recommendation.
Software evidence benchmark
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Evidence methodology
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How to use this comparison
Support status
Supported, conditional, unknown and not-supported states are kept distinct so missing evidence is not treated as a negative fact.
Confidence
Confidence reflects the strength of the recorded evidence for this capability, not overall product quality.
Fit for your company
A product can strongly support this capability and still be a poor overall fit due to deployment, integrations, security, region, budget or other must-haves.
Independent software advice
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