Hide-Out! allows you to hide and password protect a folder in the Finder. Now also sets the folders invisible bit which means that its still invisible when you boot into OS X.
What’s new in version 3.0
Version 3.0: Release notes were unavailable when this listing was updated.
Not very hidden as all you have to do
is locate the directory a shell (terminal). The program simply renames the folder with a "." at the beginning. The password protection is pointless. This is good to hide files from only the prying eyes of a clueless person or a WinTel biggot.