If you’re disillusioned with Windows, Linux is probably the top alternative. While it has been around since the 90s, you might not have used any of its implementations or distributions (distros). Kali Linux is one such popular distro used primarily for cybersecurity. It might not be geared toward the average Linux user, but if you’re a professional penetration tester or studying cybersecurity with an aim to get certified, Kali Linux is one of the best tools available.