DRM, or digital rights management, refers to the use of technologies that control access to digital content and restricts its use in various ways. Some common synonyms for DRM include copy protection, technological protection measures (TPMs), content protection, content locking, digital content management, and digital content protection. These terms all refer to the same concept of protecting digital content from unauthorized copying, sharing, and distribution. DRM is often employed in the music, film, and publishing industries to prevent piracy and ensure that creators and publishers are properly compensated for their work. While DRM can be controversial, it remains an important tool for protecting intellectual property in the digital age.