DSS Underground was a popular website that provided information about hacking Digital Satellite Systems. As of November 2015, the website has shut down, and the front page of the site reports that the domain is for sale.
DSS Underground allowed users to discuss smart cards and satellite test cards and to share information about technology that allowed users to decode Dish Network and DirecTV Ku-band signals to access free programming. The website, which was one of several that aimed to provide an open learning environment for satellite technology enthusiasts, was featured in tech enthusiast publications such as WIRED magazine as well as the alt2600 ezine. An Internet relay chat channel associated with the website was located on the Canucknet IRC network; however, the text-only chat channel is no longer in use.