Technologies Explained
IT and OT Networks: Why Factories Should Separate Them
2026-09-20
Office networks and industrial control networks have different risks, lifecycles and failure costs. Separation protects both.
The Problem
In many factories, the office network and the production network grew together — or are the same network. A single infected laptop can reach machinery; a misconfigured machine can disrupt office systems. Neither side was designed for the other's risks.
Why It Matters
IT systems prioritize confidentiality and frequent updates; OT systems prioritize availability and stability, often running for years unchanged. Mixing them means an office security incident can stop production — and a production fault can spread to business systems.
What Should Be Assessed
Assess how IT and OT currently connect, where unnecessary paths exist, what data genuinely needs to flow between them, and how remote vendor access is controlled. Segmentation should follow operational need, not default openness.
A Practical Approach
Proper OT segmentation creates controlled connection points between the two environments, with firewalled paths, monitored access and clear rules. The result: office problems stay in the office, and production keeps running.
Relevant TLC Solution
Cybersecurity Infrastructure — Strengthen infrastructure through segmentation, controlled access, secure connectivity and system hardening.