<packt> ISTEDITION loT and OT Security Handbook Assessrisks,managevulnerabilities,andmonitorthreats withMicrosoftDefenderforloT SMITAJAIN VASANTHALAKSHMI ForewordbyDrRohiniSrivathsa NationalTechnologyOfficer(CTO)-MicrosoftIndia loT and OT Security Handbook Assess risks, manage vulnerabilities, and monitor threats with Microsoft Defender for loT Smita Jain Vasantha Lakshmi <packt> BIRMINGHAM-MUMBAI loT and OT Security Handbook Copyright 2023 Packt Publishing All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author(s), nor Packt Publishing or its dealers and distributors, will be held liable for any damages caused or alleged to have been caused directly or indirectly by this book. Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the Group Product Manager: Vijin Boricha Publishing Product Manager: Mohd Riyan Khan Senior Editor: Runcil Rebello Technical Editor: Arjun Varma Copy Editor: Safis Editing Language Support Editor: Safis Editing Project Coordinator: Ashwin Kharwa Proofreader: Safis Editing Indexer: Sejal Dsilva Production Designer: Nilesh Mohite Marketing Coordinator: Marylou De Mello First published: March 2023 Production reference: 1100323 Published by Packt Publishing Ltd. Livery Place 35 Livery Street Birmingham B3 2PB, UK. ISBN 978-1-80461-980-3 www.packtpub.com I have to start by thanking my mother, Sneh lata, my mother-in-law, Madhu Shah, and my late father, Shree Manohar lal, for their blessings. Also, my darling daughter, Neel Jain, and my husband, Pratik Jain - for being a supporter of my idea, giving me space and time to follow my passion for cybersecurity and when writing the book, and keeping the munchkin out of my hair so I could edit. Thank you so much to my coauthor, Vasantha, for giving me the opportunity to fulfill a dream and bring this book to completion. Without her help, this book would have been just a dream. - Smita Jain To my mother, Geetha Sabhahit, my husband, Muralidhar K., and my lovely baby girl, Dyuthi Chandahsara, for being my support and the rhythm of my life. To everybody linteracted with and have learned something from throughout my life! And to Smita Jain, may our partnership continue to prosper. - Vasantha Lakshmi Foreword The age of Industry 4.0 has brought about a rapid increase in the use of loT and OT devices across various industries. While these devices have transformed the way we work and interact with each other, they have also brought about new cybersecurity challenges that must be addressed challenges. The book is divided into three parts, each of which provides unique insights into different aspects of loT and OT security. The first part offers readers an in-depth understanding of the security challenges in loT and OT environments, including common attacks and vulnerabilities. This section lays the foundation for the rest of the book, offering you a comprehensive understanding of the risks and threats associated with the use of loT and OT devices in Industry 4.0. The second part focuses on Microsoft Defender for loT and how it can help address the open challenges in the connected world we live in today The authors provide practical guidance on deploying and using Microsoft Defender for loT to secure loT and OT environments. This section offers you a comprehensive approach to securing your devices against cyber threats. The third part offers best practices for achieving continuous monitoring, vulnerability management, threat monitoring, and hunting in loT and OT environments. It highlights the importance of risk assessment and aligning the business model towards Zero Trust, prov