Book Image

Mastering Defensive Security

By : Cesar Bravo
Book Image

Mastering Defensive Security

By: Cesar Bravo

Overview of this book

Every organization has its own data and digital assets that need to be protected against an ever-growing threat landscape that compromises the availability, integrity, and confidentiality of crucial data. Therefore, it is important to train professionals in the latest defensive security skills and tools to secure them. Mastering Defensive Security provides you with in-depth knowledge of the latest cybersecurity threats along with the best tools and techniques needed to keep your infrastructure secure. The book begins by establishing a strong foundation of cybersecurity concepts and advances to explore the latest security technologies such as Wireshark, Damn Vulnerable Web App (DVWA), Burp Suite, OpenVAS, and Nmap, hardware threats such as a weaponized Raspberry Pi, and hardening techniques for Unix, Windows, web applications, and cloud infrastructures. As you make progress through the chapters, you'll get to grips with several advanced techniques such as malware analysis, security automation, computer forensics, and vulnerability assessment, which will help you to leverage pentesting for security. By the end of this book, you'll have become familiar with creating your own defensive security tools using IoT devices and developed advanced defensive security skills.
Table of Contents (23 chapters)
Section 1: Mastering Defensive Security Concepts
Section 2: Applying Defensive Security
Section 3: Deep Dive into Defensive Security

Leveraging encryption

As a first step, you need to understand the applicable regulations and laws to determine whether some specific encryption requirements apply to your organization (or a part of it). For example, the following screenshot shows the different encryption requirements between the Payment Card Industry Data Security Standard (PCI DSS) and the Health Insurance Portability and Accountability Act (HIPAA):

Figure 6.14 – PCI and HIPAA encryption requirements

However, you should not create your encryption policy based only on compliance requirements. Instead, you should create a robust encryption policy based on the following considerations:

  • Implement full disk encryption (for example, BitLocker).
  • Implement email encryption.
  • Implement file-level encryption (for sensitive data).
  • Encrypt backups.
  • Create awareness campaigns to show the importance of encryption and why it must be applied at all levels (data at rest, in transit...