CASE STUDY · ENERGY
Power-Utility OT Segmentation
Brownfield OT/SCADA segmentation across 9 substations — Purdue-aligned without taking control loops offline.
9
SUBSTATIONS HARDENED
01CHALLENGE
The starting position.
A regional power utility ran 9 substations on a flat OT network with limited segmentation and a growing audit gap against sectoral cybersecurity guidelines. Field-level engineering teams were resistant to changes that risked control-loop disruption.
02APPROACH
What Cylentrix did.
Cylentrix delivered brownfield segmentation across the 9 substations using a Purdue-aligned reference architecture. Passive OT discovery preceded any active control. Engineering teams were embedded in the rollout from week one. Every change was sequenced inside planned outage windows.
03OUTCOME
What changed.
9 substations hardened to a documented segmentation standard. Zero control-loop disruption during cutover. Audit posture lifted to align with sectoral guidelines. OT-aware monitoring now feeds the central SOC.