KickassTorrents (KAT) was a popular website that hosted a vast collection of torrents for downloading movies, TV shows, music, software, and more. However, like many other torrent websites, it faced legal issues due to copyright infringement concerns. In 2016, the original KickassTorrents domain was seized and the alleged owner, Artem Vaulin, was arrested. Despite this, mirror sites and clones have since appeared, attempting to replicate the service. It's important to note that downloading copyrighted material without permission is illegal in many jurisdictions and can result in legal consequences.