SteganoGraphy.

Steganography Steganography in Greek means covered or secret writing and is a long practiced form of hiding information. It is the art of concealing the information within seemingly innocuous carriers. Steganography in an essence camouflages a message to hide its existence and make it seem invisible thus concealing the fact that a message is being sent altogether. According to the dictionary, steganography (also known as "steg" or "stego") is "the art of writing in cipher, …

…for thousands of years. Steganography has its place in security. It in no way can replace cryptography, but is intended to supplement it. Its application in watermarking and fingerprinting, for use in detection of unauthorized, illegally copied material, is continually being realized and developed. Steganography, formerly just an interest of the military, is now gaining popularity among the masses. Soon, any computer user will be able to put his own watermark on his artistic creations.