Steganography is the practice of hiding information within other non-secret data. This technique allows a person to communicate secretly by embedding a message in a way that conceals its presence. For example, a message can be hidden within an image file or audio file, making it difficult for anyone to detect that there is hidden information. The primary goal of steganography is to keep the existence of the message secret, unlike cryptography, which focuses on making the content unreadable to unauthorized users. By using steganography, individuals can share sensitive information without drawing attention to it, enhancing privacy and security in communication.