As a result, Kali has been in the making for years and has come a long way. Because the crew has always been small, just a few distinct developers have worked on each of these projects. Kali Linux is based on years of knowledge and expertise in developing penetration testing operating systems gained from previous projects. To better understand the position of Kali Linux in the ethical hacking world, let us take a look at the history of Kali Linux and its origin. Debian has been a very reliable and stable distribution for many years, offering a solid base for the Kali Linux desktop. It is a cross-platform solution that is easily accessible and offered for free to information security experts and enthusiasts. Kali Linux has hundreds of tools that perform different information security activities, including penetration testing, security research, computer forensics, and reverse engineering. Kali Linux, known initially as BackTrack Linux, is a free and open-source Linux-based operating system geared at advanced penetration testing and security auditing.