Sekit CSF · OT/ICS Security · Policy
RCF-0421Network segmentation (ICS)
Industrial control systems are formally required to be separated from corporate IT networks
Mapping at a glance
RCF-0421Network segmentation (ICS)OT/ICS Security · Policy
RCF-0421 maps to 4 controls across the published frameworks. Open in the full graph →
Maps to ISO/IEC 27001:2022 · Annex A controls
Curated mapping with the reasoning, not just the codes.
A.8.20Networks securityenablesMandating that production control systems live on their own network, separate from office IT, is the policy foundation for A.8.20's segmentation in industrial environments.A.8.22Segregation of networkssupportsThe ICS segmentation policy facet mandates that production control systems live on their own network with every crossing point approved, applying A.8.22 to operational technology.
Maps to NIST CSF 2.0
Curated mapping with the reasoning, not just the codes.
Evidence that proves this control
What an auditor, or Sekit's evidence engine, asks for.
Network architecture diagram
The drawing or schematic showing how the company's systems connect: networks, firewalls, segments, and links to the internet and the cloud.
From the Sekit evidence catalog
This topic through the other lenses
All OT/ICS Security controls
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