This is a system for protecting the copyrights on data that circulated via the Internet and other digital means. The DRM system encrypts the data so that it has limited use. Each DRM system has its own type and number of use restrictions. The data might only be able to be accessed by authorized users, it may only be allow ed to be copied a certain number of times, or it might become inaccessible at a certain date or time.

Digital Rights Management is common for music and videos. Apple’s iTunes music store was the first popular online store to implement its use for music tracks.