Book Image

Cybersecurity – Attack and Defense Strategies - Second Edition

By : Yuri Diogenes, Dr. Erdal Ozkaya
Book Image

Cybersecurity – Attack and Defense Strategies - Second Edition

By: Yuri Diogenes, Dr. Erdal Ozkaya

Overview of this book

Cybersecurity – Attack and Defense Strategies, Second Edition is a completely revised new edition of the bestselling book, covering the very latest security threats and defense mechanisms including a detailed overview of Cloud Security Posture Management (CSPM) and an assessment of the current threat landscape, with additional focus on new IoT threats and cryptomining. Cybersecurity starts with the basics that organizations need to know to maintain a secure posture against outside threat and design a robust cybersecurity program. It takes you into the mindset of a Threat Actor to help you better understand the motivation and the steps of performing an actual attack – the Cybersecurity kill chain. You will gain hands-on experience in implementing cybersecurity using new techniques in reconnaissance and chasing a user’s identity that will enable you to discover how a system is compromised, and identify and then exploit the vulnerabilities in your own system. This book also focuses on defense strategies to enhance the security of a system. You will also discover in-depth tools, including Azure Sentinel, to ensure there are security controls in each network layer, and how to carry out the recovery process of a compromised system.
Table of Contents (20 chapters)
18
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19
Index

Lessons learned

Every time an incident comes to its closure, you should not only document each step that was done during the investigation, but also make sure that you identify key aspects of the investigation that need to be reviewed to either be improved or fixed if they didn't work so well. The lessons learned are crucial for the continuous improvement of the process, and to avoid making the same mistakes again.

In both cases, a credential theft tool was used to gain access to a user's credentials and escalate privileges. Attacks against a user's credentials are a growing threat and the solution is not based on a silver bullet product; instead, it is an aggregation of tasks, such as:

  • Reducing the number of administrative-level accounts and eliminating administrative accounts in local computers. Regular users shouldn't be administrators on their own workstation.
  • Using multifactor authentication as much as you can.
  • Adjusting your security policies...