As factories embrace Industry 4.0, operational technology (OT) — the hardware and software that controls physical equipment — is increasingly connected to IT networks. This convergence brings efficiency but also exposes industrial control systems to cyber threats.
The threat is real
Ransomware attacks on manufacturing have surged. Unlike office IT, a production line outage can cost millions per day and pose safety risks. Attackers know this and are targeting OT environments with increasing sophistication.
Understand your assets
You can't protect what you don't know. A comprehensive OT asset inventory is the first step. This includes PLCs, HMIs, sensors, and legacy systems that may lack built‑in security.
Implement network segmentation
Separate OT networks from IT networks with firewalls and demilitarised zones (DMZs). Limit communication to only what's necessary, and use secure remote access solutions for vendors.
Adopt a framework
Standards like IEC 62443 provide a structured approach to OT cybersecurity. We help clients assess their current posture, identify gaps, and build a prioritised remediation roadmap.
Protecting your factory doesn't have to be overwhelming. Contact Signal Industries for a confidential discussion about your OT security.