Kali Linux is a Debian-derived Linux distribution designed for digital forensics and penetration testing. It has over 600 preinstalled penetration-testing programs, including Armitage (a graphical cyber attack management tool), Nmap (a port scanner), Wireshark (a packet analyzer), John the Ripper password cracker, Aircrack-ng (a software suite for penetration-testing wireless LANs), Burp suite and OWASP ZAP web application security scanners. If you don’t know how to use Kali Linux, you will miss the opportunity to work with great companies looking for hackers to strengthen their security?