What do corporations use to prevent copyright violations?

Corporations use a combination of legal measures, technology, and internal policies to prevent copyright violations. Legally, they register their works with copyright offices and enforce their rights through cease-and-desist letters or litigation against infringers. Technologically, they employ digital rights management (DRM) tools and monitoring software to detect unauthorized use of their content online. Additionally, they often implement training and awareness programs for employees to ensure compliance with copyright laws.