Compensating Control
What is Compensating Control?
An alternative security measure employed when a primary control cannot be implemented. Must provide an equivalent level of protection and be documented with justification.
Related terms
Frameworks that govern compensating control
What the standards actually require on compensating control
Requirements naming compensating control across 6 standards, quoted from the control text.
NSS-17 + NSS-42-G require facility computer security architecture organised by Computer Security Zones (CSZs) implementing IAEA zone model.
IAEA-NSS17-Architecture-Zones-DefenceInDepth-Segmentation · IAEA NSS-17 - Computer Security Architecture + Zone Model + Defence in Depth + Network Segmentation + Boundary →Operate OT supply chain + asset lifecycle + physical security per NIST SP 800-82 Rev 3 Chapter 6 + Chapter 7. OT Supply Chain Security must (a) qualify OT vendors and suppliers per NIST SP 800-161 Supply Chain Risk Management tailored to OT (vendor cybersecuri...
NISTSP82-8 · OT Supply Chain Security, Asset Lifecycle, and Physical Security →Identify, evaluate, and apply patches and compensating controls to SCADA assets following risk-based prioritization.
API1164-09 · Patch and Vulnerability Management →When applications, operating systems, network devices or networked IT equipment that are no longer supported by vendors cannot be immediately removed or replaced, compensating controls are implemented until such time that they can be removed or replaced.
ISM-1809 · When applications, operating systems, network devices or networked IT equipment that are n →Detect insecure services and protocols at operating system, application and package layers and disable them, applying compensating controls where they cannot be disabled.
ASBv3-NS-8 · Detect and disable insecure services and protocols →Restrict traffic between environments to authenticated and authorised connections, encrypt and monitor it, and review the configuration at least annually with a written justification for every allowed service, protocol, port and compensating control.
CCM-IVS-03 · Network Security →Questions people ask about compensating control
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