A practitioner-built checklist covering the five areas that decide whether your environment survives an attack or shuts down production. No theory — items your team can act on this week.
✓ 60+ checkpoints✓ ISA/IEC 62443 mapped✓ Free, no account required
ASSESSMENT DOMAINS · 5 OF 5
01
Network Segmentation
Zone/conduit model, IT/OT boundary
02
Asset Inventory
Hardware, software, firmware tracking
03
Access Control
Least privilege, remote access, MFA
04
Incident Response
Detection, playbooks, recovery
05
ISA/IEC 62443 Gaps
SL-1 through SL-3 compliance posture
PREVIEW — SECTION 1: NETWORK SEGMENTATION
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60 actionable checkpoints, ISA/IEC 62443 SL references, and a scoring method to prioritize what you fix first. No spam — one email with your checklist, that's it.
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OT Security Assessment Checklist
60 checkpoints across 5 domains. Check each item. Score at the end of each section.
// HOW TO SCORE //
90–100% — Well defended. Focus on resilience testing.
50–69% — Significant exposure. Start remediation this quarter.
<50% — High risk. Treat as active incident planning posture.
DOMAIN 01 · ISA 62443-3-3 SR 5.1, 5.2
Network Segmentation
DOMAIN 02 · ISA 62443-2-1 4.2.3.4
Asset Inventory
DOMAIN 03 · ISA 62443-3-3 SR 1.1–1.13
Access Control
DOMAIN 04 · ISA 62443-2-1 4.3.4.5
Incident Response
DOMAIN 05 · ISA 62443-2-1 / 62443-3-3
ISA/IEC 62443 Gap Assessment
// OVERALL ASSESSMENT SCORE //
0 / 50
Use this baseline score to prioritize your remediation roadmap. Focus on items in the domains with the lowest scores first — those represent your highest-probability attack paths.
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OT/ICS Security Fundamentals
The 5-module training course that covers every domain on this checklist — with hands-on labs, real incident case studies, and ISA 62443 implementation guidance.