TrueCrypt creates a virtual encrypted disk within a file and mount it as a real disk
Encrypt an entire hard disk partition or a device, such as USB flash drive
Anyone who wants to gain access and use the system, read and write files, etc., needs to enter the correct password each time before the system starts. All the data kept in the units are calculated and deciphered in real time by TrueCrypt, so that this process passes inadvertent.to the user.
TrueCrypt is very util for those who want to keep the data safety. You can use it to encrypt a USB drive and protect the information.
TrueCrypt is easy to use, there is not excuse for not protecting our data.