IIoT (Industrial Internet of Things)
IoT technology applied to industrial settings, extending OT networks with connected sensors, actuators, and machinery. IIoT expands visibility but also significantly increases the attack surface.
What is IIoT (Industrial Internet of Things)?
IoT technology applied to industrial settings, extending OT networks with connected sensors, actuators, and machinery. IIoT expands visibility but also significantly increases the attack surface.
The Industrial Internet of Things (IIoT) describes the application of IoT technology — connected sensors, actuators, data aggregators, and analytics platforms — within industrial environments: manufacturing floors, energy infrastructure, supply chains, and critical infrastructure. IIoT enables operational efficiency improvements that were previously impossible: predictive maintenance based on real-time sensor data, quality monitoring with immediate feedback loops, energy optimization, and digital twin simulations.
IIoT expands the traditional OT attack surface significantly. Classic OT environments consisted of purpose-built industrial controllers (PLCs, RTUs, DCS) with predictable, limited communication patterns. IIoT adds commodity hardware (often Android-based or embedded Linux), cloud connectivity for data aggregation and analytics, third-party platforms with software update dependencies, and consumer-grade security assumptions applied to industrial environments.
The integration of IIoT with legacy OT creates complex security environments. A manufacturing facility may have 40-year-old PLCs on dedicated fieldbus networks alongside new IIoT sensors transmitting to Azure IoT Hub. The new IIoT layer introduces cloud connectivity, software supply chain dependencies, and IT-style vulnerabilities into an environment that was designed for isolation. Security programs must monitor and protect both layers simultaneously.
Key Facts
- The IIoT device count is projected to reach 36 billion globally by 2025
- IIoT devices typically use commodity hardware and software with significantly more vulnerability exposure than purpose-built OT
- Cloud connectivity in IIoT creates external attack surface that didn't exist in traditional isolated OT environments
- IIoT and traditional OT on the same network require separate behavioral baselines — their communication patterns are fundamentally different
How ORDR Addresses IIoT (Industrial Internet of Things)
ORDR discovers and classifies IIoT devices alongside traditional OT assets, applying appropriate behavioral baselines and risk scoring for each device type. IIoT cloud connectivity is monitored as part of behavioral analysis — unexpected changes in cloud communication patterns are detected and alerted alongside traditional OT protocol anomalies.
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ORDR discovers and monitors every OT asset in real time—even legacy PLCs and SCADA systems that cannot run agents.