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

Understanding IoT networking technologies

While some IoT implementations use Wi-Fi, the truth is that Wi-Fi has several limitations, especially in terms of energy consumption and network coverage (range). Therefore, a new set of technologies has been developed to overcome that limitation and increase the reach up to 10 kilometers.

Now, let's take a look at some of those IoT network technologies and the vulnerabilities associated with them.


LoRaWAN, also know as LoRa, is an open standard for the implementation of low-power wide area networks (LPWANs).

One of the main advantages of this technology is the ability to transfer data over long distances (more than 10 kilometers) with very low power consumption. This makes LoRa a great alternative for connecting IoT devices and sensors. Additionally, as seen in the following figure, LoRa devices are really small. This is great for prototyping (and even to integrate into production systems):