OneApp Software has updated the file/folder security application, Secret Folder, to version 1.4.1. Secret Folder allows users to hide and password protect selected documents from other users. According to OneApp:
OneApp Software released Secret Folder 1.4.1, a shareware easy-to-use security application. 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 uninvited!). The program is really simple to use and can be protected with a password for extra security. This update fixes a minor bug related with some particular configurations of Power Macintosh G4 with Mac OS 9.
Secret Folder is available for US$20. You can find more information at the OneApp Software web site.