Book Image

IoT and OT Security Handbook

By : Smita Jain, Vasantha Lakshmi
Book Image

IoT and OT Security Handbook

By: Smita Jain, Vasantha Lakshmi

Overview of this book

The Fourth Industrial Revolution, or Industry 4.0, is all about digital transformation, manufacturing, and production. The connected world we live in today, including industries, comes with several cybersecurity challenges that need immediate attention. This book takes you through the basics of IoT and OT architecture and helps you understand and mitigate these security challenges. The book begins with an overview of the challenges faced in managing and securing IoT and OT devices in Industry 4.0. You’ll then get to grips with the Purdue model of reference architecture, which will help you explore common cyber attacks in IoT and OT environments. As you progress, you’ll be introduced to Microsoft Defender for IoT and understand its capabilities in securing IoT and OT environments. Finally, you will discover best practices for achieving continuous monitoring and vulnerability management, as well as threat monitoring and hunting, and find out how to align your business model toward zero trust. By the end of this security book, you’ll be equipped with the knowledge and skills to efficiently secure IoT and OT environments using Microsoft Defender for IoT.
Table of Contents (16 chapters)
Part 1: Understand the Challenges in IoT/OT Security and Common Attacks
Part 2: How Microsoft Defender for IoT Can Address the Open Challenges in the Connected World We Live in Today
Part 3: Best Practices to Achieve Continuous Monitoring, Vulnerability Management, Threat Monitoring and Hunting, and to Align the Business Model Toward Zero Trust
Chapter 9: Vulnerability Management and Threat Monitoring

Continuous Monitoring

In the previous chapter, we started to understand the core features of MDIoT. Now, let us delve deeper into another of its features: continuous monitoring.

OT network sensors monitor the network traffic continuously across an organization’s assets (for IoT and OT devices). This monitoring is done through the SPAN port or network TAP. This continuous monitoring is important in the field of cybersecurity, as it immediately picks up on any changes in the environment and reports anomalous behavior.

Continuous monitoring helps with the detection of policy violations, protocol violations, industrial malware, anomalies, and operational incidents. It helps in responding to the alerts generated by the system.

In this chapter, we will cover the following topics:

  • The protocol violation detection engine
  • The policy violation detection engine
  • The industrial malware detection engine
  • The anomaly detection engine
  • The operational engine
  • ...