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

Missing asset inventory for IoT/OT devices

When the assets of organizations are not tracked regularly and the organization does not know whether they are on the factory floor or in the manufacturing unit, this hampers productivity and leads to not-so-desirable business outcomes.

Organizations should place great emphasis on identifying what is in their network and the management of assets, including the current inventory of their business and software assets. The key to an effective cybersecurity strategy is making IT/OT asset management a priority. Most organizations, IT/OT teams, and cybersecurity teams struggle to understand what is in their network (assets), what is present on the device (what type of data it has, access to and from the device, and device criticality), who owns it (owners and users), and where the assets are located geographically and logically.

The following are some examples to put into perspective the havoc a missing asset inventory can create: