Chapter 5: Introduction to Security Monitoring

Up until now, we have discussed proper industrial control system (ICS) network architecture design and how to build the ICS infrastructure with security, resilience, and uptime in mind. Introduced in the previous chapter, we will be looking at how we can add visibility to the overall ICS cybersecurity posture with the help of security monitoring tools, techniques, and activities. In the second part of this book, we will examine the many facets of security monitoring. We will define the three main methods of security monitoring—namely, passive/active security monitoring and threat hunting. We will see the methodologies behind the three types, as well as play with example tools and techniques, and see how results or findings can be stored, displayed, and scrutinized to find misconfigured controls, eliminate performance hogs, and detect malicious actors and many more security secrets that might be hiding in your environment at this...