Bridging the IT/OT Divide: Securing the Plant Floor

For decades, IT and OT lived in separate worlds. IT prioritized data privacy and network uptime, while plant engineers focused strictly on physical safety and continuous production. Modern digital transformation has erased that boundary, exposing legacy industrial control systems to new operational and cyber risks.

Bridging these environments requires more than trading spreadsheets across departments, it demands a unified operational strategy. A close look at recent ServiceNow Operational Technology Management (OTM) updates reveals how leaders are turning fragmented plant data into proactive risk governance.

Building Baseline Visibility

ServiceNow OTM extends enterprise CMDB governance directly to the shop floor to automatically discover and categorize industrial assets, from programmable logic controllers (PLCs) down to physical sensors.

Automated discovery across Purdue Levels 0–3 is essential for plant modernization. However, visibility alone does not guarantee security. ServiceNow relies on integrations with passive network scanners to safely ingest device telemetry without disrupting sensitive control loops.

Translating Context into Action

Recent platform updates introduce agentic device onboarding and visual subnet mapping in the Industrial Workspace, giving engineering teams vital operational context during security incidents.

Aggregate OT device data from diverse sources into a single, interconnected network map.Responders can now visually trace device dependencies before deploying updates. However, native automated remediation is still missing. Because legacy machinery cannot tolerate standard IT patching cycles, teams must still manually coordinate updates around scheduled plant maintenance windows.

Standardising Operational Risk

Beyond software features, these updates solve a deeper cultural challenge: aligning how IT and OT define risk. IT measures risk in data privacy and uptime; OT measures risk in human safety and physical continuity.

Consolidating OT devices into a unified CMDB establishes a shared definition of asset criticality. For the first time, a CISO and a Plant Manager can review the same dashboard and immediately agree on which vulnerabilities pose an urgent threat to operations. That shared language is the real catalyst for long-term industrial resilience.