It's a freeware files encryption utility, small, portable and easy to use.
Simply drag and drop files and folders to quickly protect your sensitive documents, and then enter an password to Encrypt and Decrypt the files that you want to protect from prying eyes.
Not only encrypts your files, it also has 'Safe Internet Browsing' option to surf safe on web and removes all Internet traces like URL History, typed URLs, typed passwords in web forms and etc. Built in File Shredder - i.e. wiping the contents of the original pre-encrypted file - and more.
Your data is secure while the drive it is out and about with you in an Internet cafe's or at work.