OT Security Program for a Utility Operator
Critical findings closed across 14 substations
Substation environments lacked asset visibility, segmentation between OT and IT was inconsistent, and NERC CIP audit findings were accumulating. A safe rollout was non-negotiable no impact to grid operations.
How we delivered.
- Step 01
Deployed passive OT asset discovery across substations to establish ground truth without disrupting operations.
- Step 02
Designed a Purdue-aligned segmentation reference and rolled out site by site with operator sign-off.
- Step 03
Established continuous monitoring with detection content tuned for ICS/SCADA protocols.
- Step 04
Built incident-response playbooks jointly owned by IT, OT and operations.
- Step 05
Mapped every control to NERC CIP requirements with evidence pipelines for audit.
Measurable, defensible, durable.
substations brought under continuous monitoring
NERC CIP audit findings closed
aligned segmentation across OT estate
operational impact during rollout
- Claroty / Dragos-class OT discovery
- Purdue segmentation reference
- ICS-tuned detection content
- NERC CIP evidence pipeline