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

Operational efficiency

MDIoT is built from the ground up for OT security. It sends real-time alerts about device misconfigurations and malfunctions. This is an additional capability on top of the cybersecurity benefits. This capability helps the OT operations team to identify and carry out root cause analysis by flagging abnormal activities and providing full details that are needed from the OT segment and for any operational issues that may impact plant availability or product quality.

In Figure 4.10, an operational alert is highlighted to show that MDIoT is capable of recognizing misconfigurations. This functionality aids in increasing operational efficiency as admins are able to employ the necessary remediation steps:

Figure 4.10 – Screenshot of an operational alert aiding in operational efficiency

We will get into the details regarding understanding the alerts in the coming chapters.

At the end of this section, we now clearly understand the...