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

Asset visibility – IoT/OT and identifying the crown jewels

One very important use of the device inventory is to identify the crown jewels. This aspect of asset inventory and classification helps if an adverse situation occurs, allowing you to define a strategy to prioritize the protection of your crown jewels. MDIoT allows you to mark important devices with ease. You simply go to the Device map tab, right-click on the device you want to prioritize, and click Mark as important, as shown in Figure 7.16. The devices that are marked with a star will then be considered important:

Figure 7.16 – Mark your devices as important

Organizations may want to enrich their asset inventories using other sources, such as Configuration Management Databases (CMDBs), Domain Name Servers (DNSs), firewalls, and web Application Programming Interfaces (APIs), to enhance the data presented in the device inventory. An organization can benefit by using enhanced data to present...