OT/ICS Cyber Security
Operational technology / industrial control systems (OT/ICS) security: OT/ICS asset visibility, OT vulnerability management, IT/OT segmentation and industrial SOC (OT-SOC) monitoring — without putting production continuity at risk.
Last reviewed: 2026-09-11
Overview
Our OT/ICS Cyber Security capability focuses on protecting the operational technology and industrial control systems (ICS/SCADA) that run production lines, sites and critical infrastructure. Because safety and continuity are always the priority in these environments, we use OT-specific, non-disruptive methods rather than applying IT-world tools directly.
We begin with OT/ICS asset visibility and inventory: passively discovering and classifying every PLC, RTU, HMI and engineering workstation in the field. We then layer defenses through OT vulnerability management, IT/OT segmentation (Purdue model) and industrial SOC (OT-SOC) monitoring.
With detection rules that understand industrial protocols (Modbus, DNP3, S7, OPC-UA) and OT-specific threat intelligence, we build a monitoring capability that integrates with your IT SOC yet is adapted to the requirements of OT.
OT/ICS environments carry safety and production-continuity risk beyond typical IT systems, which is why this capability follows an OT-specific, non-disruptive methodology throughout — from initial asset discovery to ongoing OT-SOC monitoring. For organizations that also need adversarial testing of their industrial systems, this program works alongside our penetration testing service, which offers dedicated ICS/SCADA and operational technology (OT) testing.
Scope
We protect your OT/ICS environment in layers:
- OT/ICS asset visibility and inventory: PLCs, RTUs, HMIs, engineering workstations and field devices.
- OT vulnerability management: passive detection, prioritization and remediation tracking without disrupting production.
- IT/OT segmentation: network separation and hardening based on the Purdue reference model.
- Industrial SOC (OT-SOC): monitoring and threat detection that understands OT protocols.
- OT threat intelligence and industrial incident response.
- Secure remote access and oversight of vendor connections.
- Protocol-aware detection: monitoring rules tuned to industrial protocols such as Modbus, DNP3, S7 and OPC-UA.
- IEC 62443 zone and conduit segmentation: structuring the OT network into security zones with controlled conduits between them.
Approach
We apply an OT-specific methodology that prioritizes production continuity:
- Passive discovery: enumerating assets by listening to network traffic without disrupting production.
- Running non-critical active tests only within agreed maintenance windows.
- Assessment based on the IEC 62443 and NIST SP 800-82 frameworks.
- Detection rules that integrate with the IT SOC yet are adapted to OT.
- Minimizing operational impact by working alongside field teams.
- Mapping assets and data flows against the Purdue model's levels, from field devices up to enterprise IT, to decide where segmentation and monitoring controls belong.
- Reviewing and monitoring third-party and vendor remote-access paths into the OT network as part of every assessment.
- Reporting and executive visibility: findings, segmentation architecture and detection coverage are consolidated into the executive summary and OT security roadmap, prioritized by production-safety impact rather than IT-style severity alone.
- OT-specific threat intelligence: incorporating industrial threat intelligence feeds into detection rules and prioritization so alerts reflect real-world OT/ICS attack patterns.
Deliverables
We advance your OT security maturity in concrete terms:
- A complete OT/ICS asset inventory and network map.
- An OT-specific, prioritized vulnerability report.
- IT/OT segmentation architecture and hardening recommendations.
- OT-SOC monitoring rules and detection coverage.
- Executive summary and an OT security roadmap.
- An IEC 62443-aligned zone and conduit diagram documenting the segmentation design.
- Findings and hardening recommendations for third-party and vendor remote-access paths.
- A protocol-aware detection summary covering Modbus, DNP3, S7 and OPC-UA traffic across your OT-SOC monitoring scope.
Products
Systems in this category
OT/ICS asset visibility, segmentation and OT-SOC monitoring are delivered as scoped, on-site engagements rather than a packaged system — get in touch to scope yours. This reflects the same OT-specific, non-disruptive approach used throughout: the scope, cadence and testing windows are tailored to your facility's safety and production requirements rather than following a one-size-fits-all packaged assessment.
FAQ
OT/ICS Cyber Security — FAQ
What do you offer under OT/ICS cyber security?
Can you work in an OT environment without stopping production?
Is an industrial SOC (OT-SOC) different from a classic SOC?
How do we get started?
How does this differ from your penetration testing service's ICS/SCADA testing?
Looking for a solution tailored to your needs?
Request a quote for configurations tailored to your organization in OT/ICS Cyber Security.