Cybersecurity Evaluation Tool (CSET) vs SecurityGate ISA/IEC 62443-3-2 Workflow: Side-by-Side Comparison (2026)

Short answer

Organizations assessing industrial control systems and critical infrastructure will get the most from Cybersecurity Evaluation Tool (CSET) because it combines standards-based frameworks with hybrid risk scoring rather than forcing a choose-your-own-adventure through NIST controls. The tool is free, runs on Windows without external dependencies, and maps directly to IEC 62443 and NERC CIP alongside NIST CSF, making it unusually useful for facilities teams who need to speak both engineering and compliance language. Skip this if you're managing primarily IT networks or need continuous monitoring; CSET is an assessment snapshot, not a platform, and it won't replace your vulnerability scanner or SIEM. Mid-market and enterprise OT teams responsible for critical infrastructure need SecurityGate ISA/IEC 62443-3-2 Workflow because it cuts assessment time by codifying the standard itself into configurable workflows, eliminating the back-and-forth between security and engineering on what "compliant" actually means. The tool maps directly to ISA/IEC 62443-3-2 control selection and residual risk scoring, with multi-zone assessment in a single project rather than fragmented spreadsheets. Skip this if your OT environment is brownfield legacy with limited documentation; the tool assumes enough asset visibility to feed meaningful data into its threat library and risk matrices.

Based on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion: