FolderGuard X

FolderGuard is a utility designed to keep your folders private from prying eyes, and to do that cost-effectively and easily. FolderGuard makes hiding folders on any of your disks as easy as clicking a button. No command line commands or other wizardry needed. Version 2.5 is a complete rewrite of the application, so it now takes advantage of Mac OS X's technologies, such as the operating system's built-in administrator authentication system.