Manage access to digital content – only users who meet certain criteria or business rules have access to the particular content (e.g. users who bought a subscription or an individual access to a movie).
Prevent unauthorized redistribution – by encrypting the content and securely managing the encryption keys,
Restrict and manage the ways that consumers can copy the content – DRM system can restrict the end devices (i.e. client devices – e.g. PC) from copying the movie during playback.