Sekit CSF · OT/ICS Security · Process
RCF-0422Network segmentation (ICS)
ICS network boundaries are consistently maintained and cross-boundary traffic is strictly controlled
Mapping at a glance
RCF-0422Network segmentation (ICS)OT/ICS Security · Process
RCF-0422 maps to 4 controls across the published frameworks. Open in the full graph →
Maps to ISO/IEC 27001:2022
Curated mapping with the reasoning, not just the codes.
A.8.20Networks securitysupportsContinuously controlling the IT/OT boundary, reviewing cross-boundary rules and removing unneeded connections, keeps A.8.20's segmentation intact in production environments.A.8.22Segregation of networkssupportsThe process facet keeps the IT/OT boundary controlled, reviewing cross-boundary traffic and removing connections that no longer have a reason, the recurring check A.8.22's ICS scope needs.
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
Ask Sekura: “What evidence proves RCF-0422?”
Also via MCP, free with account