An industrial IoT system is highly complex and involves several moving parts. To simplify the security analysis and implementation, there are multiple ways we can decompose IIoT architecture into constituent components. Since most common deployment models consist of the edge, platform, and enterprise tiers, and security research and development are more aligned with the technology stacks, in this book, to facilitate security analysis, planning, and implementation, we shall dissect the overall architecture in a four-tier security model, with the following tiers:
- Endpoints and embedded software
- Communication and connectivity
- Cloud platform and applications
- Process and governance
This layering follows the unique ...