PARADOX (PDX) is a warez–demogroup; an anonymous group of software engineers that devise ways to defeat software and video game licensing protections, a process known as cracking, which is illegal in most jurisdictions. They distribute cracks, keygens, and pre-cracked versions of entire programs. Over the years, distribution methods have changed, starting out with physically transported floppy disks and BBS distribution. Today most of their files reach the public over various peer-to-peer file networks.