Incident response is fundamental and necessary for organizations' cybersecurity, regardless of their size. This book provides helpful information to professionals who work in large companies with a certain level of maturity in incident response and those who work in small or medium-sized companies, where there are no areas dedicated to this field.

I wrote this book with a broad approach that converges diverse disciplines, such as threat intelligence, threat hunting, and detection engineering. The different chapters show how the orchestration of these activities using the appropriate technologies can improve the capacity to respond to security incidents that can impact organizations.

There are four sections in this book. The first section covers the basic concepts of incident response, the first response procedures, and the tools to collect the artifacts from different devices.

In the second section, we will analyze the distinct types of threat actors from a broad perspective, considering their motivations and capabilities, under the principle that the best form of defense strategy is taking advantage of the knowledge of adversaries.

The third section covers the main aspects of implementing an incident response program, including the incident response plan and actionable playbooks based on different scenarios. This section also covers the technologies that support incident management and the integration of monitoring, detection, and investigation systems.

Finally, the fourth section covers critical aspects related to a proactive detection posture in the search and detection of attack indicators that speed up a threat's response and containment times to minimize its impact and thus prevent adversaries from achieving their objective.