It's only DRM if it's from the Article 11 region of the WIPO Copyright Treaty; otherwise, it's just sparkling obfuscation.

> Contracting Parties shall provide adequate legal protection and effective legal remedies against the circumvention of effective technological measures that are used by authors in connection with the exercise of their rights under this Treaty or the Berne Convention and that restrict acts, in respect of their works, which are not authorized by the authors concerned or permitted by law.

(DRM's a silly name, anyway; it should be called "technological measures" or "technological protection measures" or something.)