Softwares

                            True Crypt-Open Source Encryption Software
                         TrueCrypt is a one of the best open source soft-wares. It encrypts all your data such a way even hackers also can't be steal your data.It's features are:

• It creates a virtual encrypted disk
• You can encrypt entire partition, even all your usb disk.
• Encryption is automatic, transparent

You can Find the latest version of TrueCrypt in the following link:http://www.truecrypt.org/downloads
If you like TrueCrypt you can donate to it.
You can download the software's source code in the following link:
http://www.truecrypt.org/downloads2