Manufacturing Edge & OT Security
Segmenting plant networks while enabling safe cloud telemetry
The Challenge
Flat plant networks mixing HMIs, PLCs, and corporate laptops
Vendors requiring remote access with inconsistent security posture
Need for predictive maintenance data without exposing control planes
Regulatory expectations around incident detection and segmentation
Our Solution
Designed Purdue-aligned zones with controlled jump hosts and vendor DMZs
Deployed industrial firewalls and east-west inspection between cells
Mirrored OT-relevant telemetry to a cloud historian via one-way patterns where possible
Implemented centralized logging and playbooks for OT anomalies
Ran tabletop exercises with plant and IT leadership
Measurable Impact
In place
Critical cells isolated with explicit allow lists and monitored paths
Controlled
Vendor connectivity time-boxed, logged, and segmented from production cells
Improved
Security and operations shared baselines for normal vs. suspicious OT traffic
Protected
Changes sequenced with maintenance windows and rollback plans
"We needed modernization without gambling the line. The design respected OT constraints and still got us to a defensible architecture."
Technology stack
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