Encryption is basically the art and science of using mathematics to secure information, and has been used by mankind for centuries now. 
Encryption can guard communications and stored information from unauthorized access. There are also other cryptographic techniques, including methods of authentication and digital signatures that can protect you against spoofing and message forgeries, etc.
Encryption tools essentially act as ciphers that convert information into secret code that only you or the intended recipient can access, leaving the data unreadable for any third party.
Encryption utilities are available dime-a-dozen these days and most of them are easy-to-use utilities available as freeware or shareware.
So why take a chance with your data? Just zero down on the one that fits your requirement the best. Here’s a little background on the what’s, why’s and how’s of cryptography, and some not-so-tech explanations of the principles and methods of data encryption. Finally, we also take a look at some of the most popular encryption tools available
