Book Image

Cybersecurity Blue Team Strategies

By : Kunal Sehgal, Nikolaos Thymianis
Book Image

Cybersecurity Blue Team Strategies

By: Kunal Sehgal, Nikolaos Thymianis

Overview of this book

We've reached a point where all organizational data is connected through some network. With advancements and connectivity comes ever-evolving cyber threats - compromising sensitive data and access to vulnerable systems. Cybersecurity Blue Team Strategies is a comprehensive guide that will help you extend your cybersecurity knowledge and teach you to implement blue teams in your organization from scratch. Through the course of this book, you’ll learn defensive cybersecurity measures while thinking from an attacker's perspective. With this book, you'll be able to test and assess the effectiveness of your organization’s cybersecurity posture. No matter the medium your organization has chosen- cloud, on-premises, or hybrid, this book will provide an in-depth understanding of how cyber attackers can penetrate your systems and gain access to sensitive information. Beginning with a brief overview of the importance of a blue team, you’ll learn important techniques and best practices a cybersecurity operator or a blue team practitioner should be aware of. By understanding tools, processes, and operations, you’ll be equipped with evolving solutions and strategies to overcome cybersecurity challenges and successfully manage cyber threats to avoid adversaries. By the end of this book, you'll have enough exposure to blue team operations and be able to successfully set up a blue team in your organization.
Table of Contents (18 chapters)
1
Part 1:Establishing the Blue
14
Part 3:Ask the Experts

Defense-in-depth

At this stage, it is important to introduce the concept of Defense-in-Depth or DiD, which originally was developed by the National Security Agency (NSA) and the military to layer cyber defenses to better protect critical national technical infrastructure.

In a nutshell, this methodology helps the blue team design its security controls in a way that there is redundancy baked in, at every level. If one control were to fail or be compromised, the intention is to have at least one other control be able to defend the organization.

The layered approach of DiD is applicable to all levels of IT systems. The concept is applicable to building the security blueprint of a single endpoint device, as well as an entire organization with tens of thousands of assets. No organization can be adequately protected with a single layer of security. Hence, different defense controls work together to close any potential vulnerability. The main elements of classic DiD security include...