Sunbowsoft Secure Storage (3S) is powerful, reliable and easy to use disk encryption software, which transparently encrypts disk partitions, devices (USB memory sticks, etc.) or creates encrypted virtual disk as files.3S allows you to protect sensitive data and confidential information with proven encryption algorithm (AES, BLOWFISH-256, TWOFISH-256,TripleDES, etc.), ensuring that only authorized users may access it. There are two types of 3S volumes: 1. Partition/device The 3S partition is a hard disk partition encrypted using 3S. You can also encrypt hard disks, USB hard disks, USB memory sticks, and other types of storage devices. 2. File-hosted virtual disk The File-hosted virtual disk is a normal file, which is a completely independent encrypted virtual disk device. It is treated as a separate disk (for instance the H:\ drive). A volume can only be accessed with a password. It is invisible unless you mounted it. Once mounted, the 3S volume is like any other drive you normally work with. It functions like any other drive (D: or E:) on your computer. Just drag and drop any file into the 3S volume. 3S volume can only be viewed, accessed, browsed or modified by the user who has the key to open it. At other times, the volume is invisible!