Copyright enforcement refers to the legal measures taken to protect the rights of creators over their original works, such as music, literature, and art. When someone uses these works without permission, copyright holders can take action to stop the unauthorized use and seek compensation for damages. This process often involves sending cease-and-desist letters or filing lawsuits. Organizations like the Recording Industry Association of America (RIAA) and the Motion Picture Association (MPA) play key roles in copyright enforcement. They monitor the use of copyrighted materials and work to ensure that creators receive proper credit and compensation for their work, helping to maintain the integrity of creative industries.