OT/IT Network Segmentation — Vector Integration Systems

OT/IT Network Segmentation

Protecting industrial control systems from lateral movement attacks

Stop Attacks Before They Reach Your Control Systems

The single most common path into industrial control systems is through the corporate IT network. When OT and IT share network segments, a ransomware infection or phishing attack can move from an office workstation to a SCADA system in minutes. Network segmentation stops that lateral movement.

What Proper Segmentation Delivers

  • Industrial DMZ (iDMZ) — controlled data exchange without direct OT/IT connectivity
  • VLAN segmentation — logical separation by function, criticality and user group
  • Firewall rule sets for OT protocols — Modbus, DNP3, EtherNet/IP, IEC 61850
  • Remote access hardening — jump server architecture with mandatory MFA
  • Complete segmentation documentation and network diagrams

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