Because of section 1201 of the DMCA, the "anti-circumvention" provision, companies have been abusing copyright law to block all sorts of actions that are totally unrelated to copyright. That's because 1201 makes it illegal to circumvent basically any "technological protection measures." The intent of the copyright maximalists was to use this section to stop people from breaking DRM. However, other companies soon distorted the language to argue that it could be used to block certain actions totally unrelated to copyright law -- such as unlocking garage doors, ink jet cartridges, gaming accessories... and phones