Individual skill
implementing-iec-62443-security-zones
Designs security zones and conduits for industrial control systems (IACS) per IEC 62443-3-2 — risk-based zone partitioning, Security Level target (SL-T) assignment, conduit controls, and firewall microsegmentation validated against the Purdue Reference Model. Use when designing OT network zones for a new facility, retrofitting zones into a flat OT network, or upgrading VLAN-only segmentation for IEC 62443-3-2 compliance.
skills/implementing-iec-62443-security-zones/SKILL.md
Source commit 54a798831d2266a3ca61ce68a7acb80b81160d57
What was checked
- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- Yes
- Repository scan complete
- No
- Skill scan complete
- No
- Observed behavior
- Network or broad shell
- Last checked
- Nov 9, 2026
These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.
Install this skill
Choose an agent in your Stack or copy a command below. Commands fetch the pinned commit and copy only this skill directory. Existing destinations are refused. Copying a command does not install anything.
An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.
Repository context
- Repository stars (not skill ratings)
- 35,875
- Repository last updated
- Aug 31, 2026
- License
- Apache-2.0
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- ai-agents Repository topic
- claude-code Repository topic
- cybersecurity Repository topic
- incident-response Repository topic
- mitre-attack Repository topic
- penetration-testing Repository topic
- red-team Repository topic
- security Repository topic
- cloud-security Repository topic
- malware-analysis Repository topic
- ot-security Declared skill tag
- ics Declared skill tag
- scada Declared skill tag
- industrial-control Declared skill tag
- iec62443 Declared skill tag
- network-segmentation Declared skill tag
- zones-conduits Declared skill tag
- legal Derived category
- security Derived category
Files and excerpt
File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.
Browse files
LICENSEasset · 11,255 bytesSKILL.mdcore · 20,147 bytesSKILL.mdcore · 20,147 bytesSKILL.mdcore · 20,147 bytesSKILL.mdcore · 20,147 bytesSKILL.mdcore · 20,147 bytesreferences/api-reference.mddoc · 1,770 bytesscripts/agent.pyruns · 9,009 bytes
Read excerpt
# Implementing IEC 62443 Security Zones
## When to Use
- When designing a greenfield OT network architecture for a new industrial facility
- When retrofitting security zones into an existing flat OT network after an assessment finding
- When implementing network segmentation to comply with IEC 62443-3-2 certification requirements
- When upgrading from basic VLAN segmentation to policy-enforced zone/conduit architecture
- When an IT/OT convergence project requires defining security boundaries between enterprise and operational networks
**Do not use** for IT-only network segmentation (see implementing-network-microsegmentation), for cloud-native workload segmentation (see securing-kubernetes-on-cloud), or for physical security zone design without a cyber component.
## Prerequisites
