SubRosaSoft announced the immediate availability of CipherWorks 4 on Wednesday. The application is based on the companyis CipherDisk and FileUtilities applications, and can protect and hide hard disks, portable drives, memory sticks, and more. You can also apply strong encryption to files and folders, permanently erase files and hard drives. CipherWorks 4 is available for download at the SubRosaSoftware Web site, and is priced at US$79.95. A boxed version will be available in January 2006 for $89.95.