Most OT cyber incidents become major business disruptions because attackers can move laterally between systems.

That usually happens because segmentation is weak.

Modern manufacturing environments often connect:

• ERP systems

• SCADA platforms

• PLCs

• Cloud services

• Remote vendors

• Engineering workstations

• Industrial IoT devices

Without proper segmentation, a compromise in IT can quickly spread into operational environments.

What Modern OT Segmentation Should Include

IT / OT Separation

Enterprise IT should never have unrestricted access into OT networks.

Use:

• Firewalls

• Industrial DMZs

• Controlled routing

• Secure jump servers

Micro-Segmentation

Inside OT environments, segment:

• SCADA systems

• PLC zones

• Safety controllers

• Robotics networks

• Engineering workstations

This limits lateral movement.

Identity Security

Segmentation must work alongside:

• MFA

• PAM

• Least privilege

• Vendor access controls

OT Visibility

You cannot secure what you cannot…