What is Steganography, Anyway?
The term steganography comes from the Greek words for covered writing. If, as a child, you ever wrote an invisible message in lemon juice and had your friend hold it next to a light bulb in order to watch the message magically appear, you’ve used steganography. When using steganography on a computer, you actually hide a message within another file. That resulting file is called a “stego file.” The trick to computer steganography is to choose a file capable of hiding a message.
