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

What makes up an IDMZ design?

In this section, we will explore the parts that can be found in a typical IDMZ. We will look at the individual sections from a hardware, connectivity, and design-and-configuration perspective. We will hold our discussions around the following fundamental IDMZ design:

Figure 3.4 – Fundamental IDMZ architecture design

Let's take a closer look at the individual parts that make up an IDMZ, as depicted in Figure 3.4, in the following sections.

The Enterprise Zone

The presence of IDMZ assets in the Enterprise Zone is often very minimal, if there are any at all. Typically, endpoint clients such as web browsers, RDP clients, and the like are used to interact with the industrial environment.

Certain industrial applications or IDMZ broker services demand an enterprise presence of the system ICS environment. For example, data replication solutions such as SQL-to-SQL replication (or Pi-to-Pi for Pi Historian systems)...