Book Image

Industrial Cybersecurity - Second Edition

By : Pascal Ackerman
Book Image

Industrial Cybersecurity - Second Edition

By: Pascal Ackerman

Overview of this book

With Industrial Control Systems (ICS) expanding into traditional IT space and even into the cloud, the attack surface of ICS environments has increased significantly, making it crucial to recognize your ICS vulnerabilities and implement advanced techniques for monitoring and defending against rapidly evolving cyber threats to critical infrastructure. This second edition covers the updated Industrial Demilitarized Zone (IDMZ) architecture and shows you how to implement, verify, and monitor a holistic security program for your ICS environment. You'll begin by learning how to design security-oriented architecture that allows you to implement the tools, techniques, and activities covered in this book effectively and easily. You'll get to grips with the monitoring, tracking, and trending (visualizing) and procedures of ICS cybersecurity risks as well as understand the overall security program and posture/hygiene of the ICS environment. The book then introduces you to threat hunting principles, tools, and techniques to help you identify malicious activity successfully. Finally, you'll work with incident response and incident recovery tools and techniques in an ICS environment. By the end of this book, you'll have gained a solid understanding of industrial cybersecurity monitoring, assessments, incident response activities, as well as threat hunting.
Table of Contents (26 chapters)
Section 1: ICS Cybersecurity Fundamentals
Section 2:Industrial Cybersecurity – Security Monitoring
Section 3:Industrial Cybersecurity – Threat Hunting
Section 4:Industrial Cybersecurity – Security Assessments and Intel
Chapter 15: Industrial Control System Risk Assessments
Section 5:Industrial Cybersecurity – Incident Response for the ICS Environment

How do ICS/OT security assessments differ from IT?

Throughout the chapter, we have already discussed some of the key differences per assessment type between ICS (cyber)security assessments and purely IT-oriented ones.

In general, keep in mind that the scanning of equipment and identifying vulnerabilities within the industrial environment requires a different approach from the scanning and probing of a typical IT environment. In most cases, devices that are present on an IT system or network can be rebooted, restored from backup, or replaced with little to no interruption of service to the users of the IT resources. An ICS, on the other hand, controls a physical process and therefore interruption of service due to excessive scanning and probing can have real-world consequences, including physical damage or even harm to human life or the environment. For this reason, vulnerability assessments should be limited to passive scans of the ICS network, minimizing the interaction with the...