Secret Folder for Mac

From Apimac: Apimac Secret Folder lets you conceal a folder and its contents. It provides you with an easy and fast way to protect documents and avoid them being seen, modified, or erased by other users (either on a network or on a shared computer). The program is simple to use and folders can be protected with a password for extra security. Version '08 build 87 fixes known bugs and includes a variety of minor interface tweaks.