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

Security Information and Event Management – SIEM

We briefly talked about SIEM systems in Chapter 5, Introduction to Security Monitoring. Now, it is time to get more familiar with the technology that we will be using extensively throughout the third part of this book, Threat Hunting.

What is a SIEM solution?

SIEM systems give security professionals insight into the activities and events within their Information Technology and Operational Technology (IT/OT) environment and keep a historical record of these activities and events.

The concept of SIEM has been around for over a decade. It initially evolved in the IT log management discipline and combines two technologies: Security Event Management (SEM) (whose function is to analyze incoming logs and event data in real time, which allows on-the-fly threat monitoring, event correlation, and incident response actions) and Security Information Management (SIM), which aims to collect, analyze, and report on the log data.