Now what happen if you need to securely store, not delete, any files? In this post, we will introduce another open source tools that will help you do just that – TrueCrypt.
With TrueCrypt you can protect your sensitive data, create a virtual encrypted disk within a file and mount it as a disk. You can also encrypt an a hard disk partition or a device, such as USB flash drive. The encryption is done automatically and transparently in real time. The author calls it an on-the-fly-encrypted volume .