OT vs. IT Security —
two worlds, one common goal
IT and OT security have different priorities. In IT, protecting data is paramount; in OT, the continuous availability of physical processes matters most.
Applying IT concepts 1:1 to production environments risks operational downtime. Conversely, neglecting OT systems opens the door to attackers. Successful OT security bridges both worlds without ignoring the unique characteristics of production environments.
— Key differences at a glance —
| Criterion | IT Security | OT Security |
|---|---|---|
| Primary protection goal | Confidentiality | Availability |
| Typical lifespan | 3–5 years | 15–30 years |
| Update cycles | Weekly, automated | Rarely, only during maintenance windows |
| Downtime tolerance | Minutes to hours | Near zero |
| Protocols | TCP/IP, HTTPS | Modbus, Profinet, OPC UA |
| Patching | Immediately upon release | Only after testing & approval |
| Primary protection focus | Data | People, environment, process |
Why convergence is crucial
IT and OT are merging — driven by Industry 4.0, cloud integration, and remote maintenance. These exact interfaces create the greatest risks. Modern Managed OT Security considers both worlds and ensures seamless transitions.
Read more about the fundamentals in our article “What is OT Security?”.
— Bridging the gap between IT and OT —
Managed OT Security
OT security that integrates seamlessly with your existing IT security framework.
View Managed OT SecurityNetwork Intrusion Detection
Passive monitoring of OT networks without risking production uptime.
View Network Intrusion DetectionOT Patch Management
Updates only applied during appropriate maintenance windows — controlled and traceable.
View OT Patch ManagementOT Asset Management
Comprehensive visibility of all devices as the foundation of any security strategy.
View OT Asset ManagementWhat is OT Security?
Definition, protection goals, and fundamentals explained concisely.
View What is OT Security?NIS2 in OT
The obligations NIS2 entails for IT and OT managers.
View NIS2 in OT