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 see.…