Agreed, but I wasn't sure how to describe software that attempts to tightly restrict user actions, protect content streams, etc other than as DRM-like. Perhaps

Agreed, but I wasn't sure how to describe software that attempts to tightly restrict user actions, protect content streams, etc other than as DRM-like. Perhaps just "secure"? Someone controls the platform, and others (users, guests, adversaries, whoever) don't - I just want to be that someone if it's my device.