Security for industrial control systems (OT/ICS/SCADA): production network segmentation, passive monitoring, asset inventory and compliance support for critical infrastructure operators.
OT and SCADA penetration testing - scope and process
OT/ICS/SCADA penetration testing differs from IT testing because production uptime comes first - a good provider starts with passive reconnaissance of the industrial network and device mapping, then moves to controlled testing of segmentation, protocols (Modbus, Profinet, OPC UA) and operator stations only within an agreed maintenance window. You get a report describing vulnerabilities in terms of production risk, not just technical severity, plus recommendations aligned with ISA/IEC 62443 and NIS2. Cost depends on the number of network segments, the type of industrial installation, and whether testing also covers older devices with no vendor support.
When to buy these services
- You run production or infrastructure systems (SCADA, PLC) connected to the office network.
- You fall under critical infrastructure obligations and need network segmentation with monitoring.
- You do not have a full inventory of industrial devices and their firmware versions.
- Production systems cannot be patched on the usual IT cadence and need compensating controls.
How to choose a provider
- Genuine OT experience - IT methods applied unchanged to production networks cause outages.
- Passive monitoring capability that does not disturb industrial protocols and processes.
- Approach to segmentation between OT and IT, and to remote vendor access.
- Understanding of your sector obligations and of the availability constraints of your process.
Company directory
Distributor and integrator of data protection technology: backup and disaster recovery, data loss prevention, privileged access management and security for IT and OT networks.
Maker of Cryptomage Cyber Eye, an NDR probe applying AI to network traffic analysis to detect threats and anomalies in IT and OT networks, including personal data leaks.
Engineering company specialising in industrial cybersecurity, building network communication, monitoring and protection systems for critical infrastructure and OT environments.
Maker of SCADvance XP, a system for monitoring, threat detection and protection of industrial OT/ICS automation networks.
OT security specialist providing audits, risk assessment, penetration testing, network segmentation, hardening, monitoring and deployments aligned with IEC 62443 and NIS2.
Specialists in penetration testing, red teaming, IT/OT/IoT audits and social engineering, also delivering threat hunting, forensic analysis and incident response.
Cybersecurity consultancy running penetration tests (applications, infrastructure, IoT/OT, vehicles), social engineering tests, compliance audits (ISO 27001, TISAX, NIS2) and Cybersecurity-as-a-Service.
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Frequently asked questions
Short answers for teams planning to buy services in this category.
Because priorities invert: in OT, availability and safety come before confidentiality, devices may run for decades, and an active scan that is routine in IT can halt a production line.
It stops an office-side compromise, such as ransomware from an email, from reaching production systems - which is the path most industrial incidents actually take.
With compensating controls: segmentation, strict access control, passive monitoring and tightly governed remote vendor access, since the device itself cannot be fixed.