A wastewater plant's PLC network was flat-bridged to city Wi-Fi "for convenience," exposing control traffic to the corporate wireless. What architectural response is most appropriate?
Select an answer to reveal the explanation.
Short Explanation
PLCs and city guest Wi-Fi on one flat party line is how convenience becomes a spill into the control room. Segment the plant network, gate the few needed links, and watch the industrial chatter.
Full Explanation
Industrial control systems are highly sensitive to integrity and availability failures. Flat connectivity between PLC networks and enterprise Wi-Fi expands the attack surface and undermines zone-based OT architecture. Segmentation, controlled conduits, and protocol-aware monitoring are standard mitigations for that exposure.