In today’s ever‑evolving digital landscape, cybersecurity professionals are in high demand. These books equip you with the knowledge and tools to become a master cyberdefender. The handbooks take you through the journey of ten essential aspects of practical learning and mastering cybersecurity aspects in the form of two volumes. Volume 1: The first volume starts with the fundamentals and hands‑on of performing log analysis on Windows and Linux systems. You will then build your own virtual environment to hone your penetration testing skills. But defense isn’t just about identifying weaknesses; it’s about building secure applications from the ground up. The book teaches you how to leverage Docker and other technologies for application deployments and AppSec management. Next, we delve into information gathering of targets as well as vulnerability scanning of vulnerable OS and Apps running on Damm Vulnerable Web Application (DVWA), Metasploitable2, Kioptrix, and others. You’ll also learn live hunting for vulnerable devices and systems on the Internet. Volume 2: The journey continues with volume two for mastering advanced techniques for network traffic analysis using Wireshark and other network sniffers. Then, we unlock the power of open‑source intelligence (OSINT) to gather valuable intel from publicly available sources, including social media, web, images, and others. From there, explore the unique challenges of securing the internet of things (IoT) and conquer the art of reconnaissance, the crucial first stage of ethical hacking. Finally, we explore the dark web – a hidden corner of the internet – and learn safe exploration tactics to glean valuable intelligence. The book concludes by teaching you how to exploit vulnerabilities ethically during penetration testing and write pen test reports that provide actionable insights for remediation. The two volumes will empower you to become a well‑rounded cybersecurity professional, prepared to defend against today’s ever‑increasing threats.