The designation refers to a method of concealing information within seemingly innocuous data. For instance, instructions might be embedded within image pixels, audio frequencies, or even text formatting that would be undetectable to casual observation. This contrasts with simple encryption by aiming for outright invisibility of the concealed data. An example includes steganography where a secret message is encoded within the least significant bits of an image file, resulting in negligible visual distortion.
The approach offers advantages in scenarios demanding covert communication or data protection. It avoids drawing suspicion in environments where encrypted messages might attract unwanted attention. Its value lies in the ability to maintain secrecy by concealing the very existence of the sensitive data. Historically, techniques like this have been employed in espionage, intellectual property protection, and even to bypass censorship in restricted communication environments.