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Software in OT/ICS Security Tools

6 tools
Pricing
Platform
ToolPricing
Claroty

CPS protection platform spanning OT, IoT, and medical devices with monitoring, access, and exposure modules.

Commercial
Dragos

OT cybersecurity platform for asset visibility, vulnerability prioritization, and ICS threat detection.

Commercial
Forescout

IT, OT, and IoT visibility and control platform with agentless OT monitoring and device compliance.

Commercial
Honeywell Cyber Insights

Honeywell OT monitoring platform for asset visibility, threat detection, and compliance management in industrial networks.

Commercial
MarlinSpike

Open source passive OT/ICS network analysis and topology mapping, positioned as a GRASSMARLIN replacement.

Open Source
Nozomi Networks

OT and IoT visibility platform with AI-driven anomaly detection across industrial networks.

Commercial

About OT/ICS Security Tools

OT and ICS security tools protect the systems that run factories, utilities, pipelines, and building controls. The category covers passive network monitoring platforms that watch industrial protocols such as Modbus, DNP3, S7, and EtherNet/IP without injecting traffic, since active scans may cause device instability or interfere with the device process state. Asset inventory builds from that passive observation, which can identify device manufacturers, part numbers, and firmware versions on controllers that no agent can be installed on. Vulnerability assessment and configuration review compare those findings against known issues and standards such as ISA/IEC 62443, and evaluation tools such as CISA's CSET, listed in the GRC category, guide a structured self-assessment. Most platforms in this category are commercial; the open source MarlinSpike performs passive analysis and topology mapping of packet captures. The category overlaps with network monitoring for capture and with vulnerability scanning for prioritization, but the safety constraint distinguishes it from both.

Covered Topics

ICS Protocol AnalysisOT Asset InventoryPassive Industrial MonitoringPLC/SCADA SecurityOT Vulnerability Management

In This Catalog

  • This category lists 6 tools: 5 commercial and 1 open source.
  • By platform, 1 runs on Linux, 1 on Windows, 1 on macOS, and 4 on the web.

Frequently Asked Questions

What is OT/ICS Security Tools?→

OT and ICS security tools passively monitor industrial protocols, inventory control-system assets, and flag anomalies in environments where active scanning can disrupt physical processes.

What topics does the OT/ICS Security Tools category cover?→

ICS Protocol Analysis, OT Asset Inventory, Passive Industrial Monitoring, PLC/SCADA Security, OT Vulnerability Management

Which OT/ICS Security tools are open source?→

1 of the 6 tools in this category are open source: MarlinSpike.

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