Hiding sensitive information in JPEG

Nowadays, the number data thieves and hackers have increased. There is a need to design a system that enables the internet users to exchange their secret and private data safely across the internet. Steganography is the science of hiding information. Whereas the goal of cryptography is to make data unreadable by a third party, the goal of steganography is to hide the data from a third party. The propose Steganography method hides files in a JPEG image. This paper describes the methods used by the application of this kind of Steganography.