OT and ICS security where safety leads.
Industrial and critical-infrastructure environments cannot tolerate IT-style scanning, IT-style patching, or IT-style downtime. We design the visibility and segmentation that protect operations without becoming the incident.
Operational Technology (OT) and Industrial Control Systems (ICS) run the equipment that makes things move, makes things flow, and keeps the lights on. The security stakes are physical. A misconfigured scan can trip a plant. A failed segmentation rollout can stop production. The methodology has to be different.
What changes for your organization:
- You have a real asset inventory — including the legacy gear nobody had documentation for.
- The IT/OT boundary becomes architectural, not aspirational. Segmentation is enforced and validated.
- Monitoring is passive-first. Detection content is OT-aware. False positives do not stop production.
- Response is built around safety. Playbooks know when not to act.
- Compliance against frameworks (NERC CIP, IEC 62443) is documented and defensible.
A five-phase methodology engineered for OT/ICS Security.
1 — Asset Discovery
Passive discovery first. Inventory PLCs, RTUs, HMIs, historians, and the long-tail legacy gear without active scanning.
2 — Boundary & Segmentation
Design Purdue-model segmentation between IT and OT, between zones, and between safety-instrumented systems and process control.
3 — Monitoring
Deploy OT-aware monitoring with detection content tuned to industrial protocols (Modbus, DNP3, S7, EtherNet/IP, others).
4 — Response Readiness
Build response playbooks that account for safety constraints. Document when isolation is appropriate — and when it is not.
5 — Continuous Validation
Establish change-management discipline, exception governance, and ongoing validation that the architecture still holds.
- Passive-first OT asset inventory with criticality and ownership
- Purdue-aligned segmentation design with documented enforcement
- IT/OT boundary architecture with documented rule sets
- OT-aware monitoring deployment plan with industrial-protocol detection content
- Safety-aware response playbooks with documented decision criteria
- Compliance mapping (NERC CIP / IEC 62443 / NIST 800-82) where applicable
Safety-first methodology
We do not run IT-style assessments against industrial environments. Practitioners who have done it once never do it again.
Critical-infrastructure pedigree
Federal, energy, and manufacturing experience. The methodology travels across sector.
Vendor-neutral across OT platforms
We design for the platform that fits your environment — including the one you already operate.
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Let's discuss your security mission.
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