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

Threat hunting in ICS environments

I often get asked, "isn't threat hunting an IT thing?" It is true that threat hunting stems from the IT side of things, but in my opinion, it is more applicable to Operational Technology (OT) environments. These often neglected industrial (network) environments could be a breeding haven for malware and malicious actors. There could be threats lurking left and right, and there could even be nation-state-backed Advanced Persistent Threat (APT) groups present, exfiltrating data and getting ready to completely take over or take down your industrial process. This can happen on the IT side too, but it occurs far more on the OT side as those networks have long been ignored. This is because they have just been chugging away for years, doing their job without anyone looking into their security. If there is something devious going on, nobody would know. And that is where threat hunting comes in: it can rule out that such malicious activities...