You're right for the wrong reasons. DRM doesn't have to involve encryption; but it does have to involve copyright. A right-click blocker script or those domain

You're right for the wrong reasons. DRM doesn't have to involve encryption; but it does have to involve copyright. A right-click blocker script or those domain locks on old Flash games is a form of DRM as long as it keeps you from copying something. Doesn't have to be elaborate, doesn't have to involve crypto. It just has to have the effect of stopping you from copying something that copyright law protects. Once you have that, then it's unlawful to remove the DRM unless it's for a lawful purpose; and it's unlawful to tell anyone how to remove it for any purpose.