The attacker then used steganography to communicate with the compromised machines.
From the techcrunch.com
Steganography is a fast, cheap, safe way of delivering murderous instructions.
From the time.com
In the computer age, steganography has become more of a science than an art.
From the sciencedaily.com
Steganography includes the concealment of information within computer files.
From the en.wikipedia.org
Steganography is the art of hiding a message in an openly available medium.
From the newscientist.com
Cryptography is often used to replace or in combination with steganography.
From the en.wikipedia.org
I would not consider steganography in general to fall under this category.
From the en.wikipedia.org
In its simplest form steganography supplies security only through secrecy.
From the en.wikipedia.org
Since the 1980s, computer technologies have made steganography easier.
From the newscientist.com
More examples
Cryptography: act of writing in code or cipher
Steganography is the art and science of writing hidden messages in such a way that no one, apart from the sender and intended recipient, suspects the existence of the message, a form of security through obscurity. ...
The practice of hiding messages, so that the presence of the message itself is hidden, often by writing them in places where they may not be found; Specifically: the use of small files in computers to communicate secret information
(steganographer) one that practices or studies steganography
Methods of hiding the existence of a message or other data. This is different than cryptography, which hides the meaning of a message but does not hide the message itself. An example of a steganographic method is "invisible" ink.
The process of hiding communication in encoded messages. Can use digital images to do so. Spyware. See digital watermark.
Steganography refers to the technique of hiding information. Modern Steganography intends exchanging secret messages through video, digital images, audio and encoded messages in computer software using passwords or algorithms along with a host of other techniques. ...
The process of hiding files within other files.
A method of hiding a secret message in another message, e.g. within a graphic image.