Steganography is the practice of hiding secret information within a non-secret medium, such as an image, audio file, or text. The goal is to conceal the existence of the information, making it undetectable to anyone who is not aware of its presence. This technique can be used for various purposes, including secure communication and protecting sensitive data. Unlike cryptography, which scrambles information to make it unreadable, steganography hides the information itself. For example, a message can be embedded in the pixels of an image, so that it remains invisible to the naked eye. This method allows for discreet transmission of information without raising suspicion.