that's really cool
It has a lock clasp that comes with it. You can mount it at any position top, bottom or sides. I put it on top, its still hidden from the outer wooden boarder completely........If mounted into the wall (similar to a medicine cabinet) it would be pretty convincing, but unless the door locks, I wouldn't quite call it secure.
I do like the idea though, and with no kids in the house, this could work for me, thanks!