Distributed Control Systems manage continuous industrial processes — chemical plants, oil refineries, power stations, and pharmaceutical manufacturing — where process uptime is measured in continuous years and any cybersecurity-motivated interruption carries safety, environmental, and financial consequences that far exceed the impact of an equivalent IT breach. Zero Trust controls for DCS environments focus on authenticated engineering access, change-control enforcement for PLC and controller configurations, and network segmentation between DCS process networks, historian servers, and corporate IT — aligned to IEC 62443-3-3 system security requirements.
Related: Zero Trust for OT · IEC-62443 · OT Controls · Manufacturing · Energy