How the Purdue model is applied to MDIoT

So far, we have delved into understanding network architectures and their topologies. Now, we will get into details of how the Purdue model (representing the OT network segmentation) in your network architecture links to MDIoT.

Let us learn about the Purdue layers that we covered in the previous chapter, Chapter 4, What Is Microsoft Defender for IoT?, in the context of MDIoT:

Figure 5.9 – The Purdue model with MDIoT

As we can see in Figure 5.9, starting from Layer 0, the layers of the Purdue model pass on information to the layers above them. Layer 0 consists of sensors and actuators, which interact with the physical environment where necessary and pass on the data to the layers above. Layer 1 consists of PLCs and RTUs. The data received from the sensors is further processed in these logical units and they provide adjusted output. Layer 1 also focuses on connecting the hardware of actuators to Layer 2.

Layer...