You fail to describe what problem you're trying to solve (apart from "I have nude pictures of my girl on it. *blush*") and from whom you want to hide your home made pr0n. Identify the attacker first and then look for solutions. I'll make a list and you can figure out what you actually want: - Nosy "friend", no Linux knowledge - Nosy "friend", with Linux knowledge - Random person Now to solutions: - Lock your device by pushing the power button and selecting "to hide some messages, you'll need to, as far as I know, hide them all. Images are indexed for a reason so trying to hide them goes against the design.