Manufacturing · Mid-size plant · multiple production lines
Manufacturing: hardening an OT network for a food-grade plant
Plants where PLCs share the office VLAN (often with default camera credentials still in place) are commonly flagged in customer audits as a single-laptop-from-downtime risk. The fix is structural rather than a single configuration change.
Reference scenario. This illustrates how we'd approach the deployment (the architecture, integration choices, and outcomes), not a specific past engagement.
A typical hardening pass segments OT and IT networks, vaults per-device credentials, applies dual-custody access to the server room, and backs up the HMI historian offsite. This is the architecture pattern customer audits expect to see.
Typical before vs after
What this kind of deployment changes.
After Lunarlink
Segmented, credentialed, and audit-ready.
What the architecture looks like once the deployment is in place.
- OT VLAN firewalled from office traffic
- Per-device camera and PLC credentials in a password vault
- Dual-custody access to the server room with logged entries
- Hourly HMI historian backup to offsite storage
Planning a deployment like this?
Book a free site assessment. We'll walk your facility, map the risk, and hand you a written recommendation within a week.
Book your assessment