In steganography, hidden information is commonly embedded in what type of media?

• A. In a plain text file
• B. In an image
• C. In a binary executable
• D. In a URL

Answer: (B)

Hiding information in steganography relies on concealing data within another medium while keeping the alteration imperceptible. Images are the most common carrier because a digital image contains a vast amount of data and can tolerate small edits without noticeable changes. By altering the least significant bits of pixels or using transform-domain techniques in formats like JPEG, you can encode substantial payloads without creating visible distortions. The combination of high data capacity and perceptual tolerance makes images a practical and widely used choice for covert messages. Other media types can carry hidden data, but they’re typically less convenient: text changes can be obvious, executables risk corruption or detection, and URLs don’t provide the broad, inconspicuous payload that images offer.