On the art of hacking art

Hacking group hides backdoor malware inside Windows logo image

Steganography is the act of hiding data within other non-secret, public information or computer files, such as an image, to evade detection. For example, a hacker can create a working image file that displays correctly on the computer but also includes malicious code that can be extracted from it.

Steganography also includes writing with invisible ink, a technology favored for centuries by prisoners, lovers, and spies.