Digital rights management (DRM) is a systematic approach to copyright protection for all kinds of digital media. It prevents unauthorized redistribution of digital media and stops consumers from copying the content they purchase.
DRM products were developed in response to a rapid rise in online piracy of commercially marketed materials aided by the widespread use of peer-to-peer (P2P) file exchange applications, more widely known as torrent clients.
DRM is typically implemented by embedding code in materials to prevent users from copying them. At times, it limits the amount of time when content can be accessed or the number of devices the media can be consumed on. Despite its widespread use, however, online piracy still runs rampant.