ICS and OT Penetration Testing Services

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Protecting Operational Technology From Real-World Threats

Industrial Control Systems and Operational Technology operate physical processes where availability, integrity and safety constraints can limit conventional testing methods. NSI Global assesses approved components, network paths, protocols, remote-access mechanisms and segmentation controls without assuming that active testing is appropriate for live systems.

Engagements are scoped with asset owners and operational personnel. Testing may include architecture and configuration review, passive discovery, controlled validation in a laboratory or staging environment and carefully authorised active testing with defined safety constraints and stop conditions.

Scope can cover PLCs, HMIs, SCADA systems, engineering workstations, field devices, industrial protocols, remote-access pathways and IT/OT boundaries.

Learn More About NSI Global's Offensive Cyber Security Methodology

Core Deliverables

OT-Specific Attack Simulation

Assess how adversaries could exploit PLCs, HMIs, SCADA systems, and field devices in your environment.

Safety-Constrained ICS and OT Testing

Apply passive, laboratory, staging or client-approved active techniques according to operational risk, safety requirements and defined stop conditions.

Segmentation & Network Flaw Discovery

Assess industrial-protocol configuration, network segmentation and remote-access pathways for weaknesses within the approved scope.

Risk-Ranked Remediation Plan

Receive findings prioritised according to asset criticality, safety implications, process dependencies, exploitability and operational impact.

What the Assessment Addresses

  • Asset visibility and unauthorised or unmanaged connections
  • Unsupported components and operational patching constraints
  • Network segmentation and exposed remote-access pathways
  • Protocol configuration and device-management weaknesses
  • Detection, response and recovery controls for OT environments
  • Safety and operational impacts of proposed remediation

Scope an ICS and OT Assessment

Contact NSI Global to define the systems in scope, operating windows, approved techniques, safety constraints, evidence requirements and stop conditions.

1300 000 NSI (674)

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