OT Penetration Testing 

(Operational Technology Penetration Testing)

Operational Technology (OT) environments increasingly rely on interconnected systems to ensure safety, availability, and production efficiency. As IT–OT convergence accelerates, industrial systems become exposed to cyber threats capable of disrupting physical processes, safety mechanisms, and critical operations.

Our approach builds on proven consulting foundations, but goes further by integrating strategy,  governance, technology, and operational resilience into a single, repeatable security model.

OT Penetration Testing

OT penetration testing validates real-world security by safely simulating attacker behavior against operational assets, without impacting uptime or safety. It goes beyond compliance checks to demonstrate how real attackers could move from initial access to operational consequences.

At Securityfocus, our OT penetration testing services are designed to reduce operational and safety risk by identifying exploitable pathways that could impact production, human safety, environmental protection, or regulatory compliance.

External OT Penetration Testing

External OT penetration testing evaluates how OT environments may be reached and impacted from outside the organization.

Scope and Activities
  • Identification of internet-facing OT assets, remote access gateways, and vendor maintenance connections
  • Testing of perimeter defenses including firewalls, VPNs, jump hosts, and remote administration channels
  • Simulation of advanced attacker techniques targeting ICS/SCADA environments
  • Validation of network segmentation between IT, OT, and third-party networks
  • Assessment of exposure created by cloud integrations and remote operations
Clear visibility into whether external threat actors can reach, influence, or disrupt critical OT systems, and which defensive controls prevent or fail to prevent that access.
Internal OT Penetration Testing

Internal OT penetration testing assesses the consequences of a breach originating from inside the organization or from a trusted third party.

Scope and Activities
  • Lateral movement testing between IT and OT environments
  • Abuse of industrial protocol weaknesses (e.g., Modbus, DNP3, OPC, proprietary protocols)
  • Identification of weak authentication mechanisms, legacy systems, and unsafe configurations
  • Evaluation of privilege escalation paths and insecure trust relationships
  • Assessment of monitoring, detection, and response capabilities within OT networks

Validated insight into how compromised IT assets, users, or vendors could impact OT operations, including realistic attack paths from initial foothold to operational impact.

Why OT Penetration Testing Matters
  • Protects safetycritical and availabilitycritical systems
  • Supports regulatory and industry compliance requirements
  • Validates OT security architecture and segmentation design
  • Informs riskbased investment and remediation decisions
  • Aligns OT cybersecurity with business, safety, and resilience objectives