8 technical questions about Industrial OT/ICS Security. Timelines, methodology, deliverables and assessment criteria.
It covers the cybersecurity assessment of operational technology (OT) environments: SCADA systems, PLCs, industrial networks, IT/OT convergence, and critical infrastructure protection against cyber threats.
Critical infrastructure operators: energy, water, oil and gas, manufacturing, transportation, mining, and any sector with industrial control systems connected to corporate networks or the internet.
Between 10 and 30 business days, depending on the number of industrial sites, the diversity of OT protocols used, and the existing IT/OT convergence level.
Frameworks such as IEC 62443 and NIST SP 800-82 are applied, evaluating industrial zones and conduits, OT network segmentation, remote access management, OT asset inventory, and anomaly detection capability.
OT architecture map with zones and conduits, industrial asset inventory, IEC 62443 gap report, IT/OT risk assessment, and a prioritized remediation roadmap.
OT security complements ISO 27001 for corporate security management and ISO 22301 for operational continuity. IEC 62443 provides the specific framework for industrial automation environments.
Frequent findings include absence of segmentation between IT and OT networks, default credentials on industrial devices, outdated firmware without patching processes, and lack of OT traffic monitoring.
Document the industrial network architecture, inventory OT devices with their firmware versions, identify IT/OT convergence points, and define maintenance windows for non-intrusive assessments.
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