51�Թ�

The art of hiding secrets in plain sight is called steganography—distinct from the more commonly used cryptography, which hides the message itself but not the fact that it is being shared.

It also brought attention to steganography, a way of disguising a secret message within another message.

It was a technique called steganography, a means of hiding a data file within the code of another data file.

Taken as a whole, "Gnomon" becomes an investigation into the use and abuse of technology, theories of time and existence, semiotics, steganography and the surveillance state.

In some cases the hackers used a technique in known as steganography which hides malware in text and images.