What role does network segmentation play in OT security?

Network segmentation is crucial in enhancing Operational Technology (OT) security and limiting attack surfaces within industrial environments. By partitioning the network into separate zones or segments, organizations can control and monitor traffic flow, isolate sensitive systems, and enforce security policies more effectively. This approach helps in containing potential threats and limiting the impact of cyber attacks, as intruders are confined to specific areas rather than having unrestricted access to the entire network. Furthermore, network segmentation allows for granular control over communication between devices and systems, reducing the likelihood of lateral movement by attackers across the network. Overall, implementing network segmentation is a proactive security measure that enhances OT security by reducing the attack surface and improving visibility and control over network traffic.