Kali Linux-The best OS for ethical hacking
Kali Linux is a Debian-based Linux distribution aimed at advanced Penetration Testing and Security Auditing. Kali Linux contains several hundred tools which are geared towards various information security tasks, such as Penetration Testing, Security research, Computer Forensics and Reverse Engineering.
Kali Linux OS is used for learning to hack, practicing penetration testing. Not only Kali Linux, installing any operating system is legal. ... If you are using Kali Linux as a white-hat hacker, it is legal, and using as a black hat hacker is illegal.
Kali Linux is used by hackers because it is a free OS and has over 600 tools for penetration testing and security analytics. Kali follows an open-source model and all the code is available on Git and allowed for tweaking. Kali has multi-language support that allows users to operate in their native language.
Mati Aharoni is the founder and core developer of the Kali Linux project, as well as the CEO of Offensive Security.