Covert Channel - Computer Definition
A communication channel whose existence is hidden or covert. Crackers create covert channels by layering a virtual connection on top of existing data communications.
See Also: Crackers.
Graham, R. Hacking Lexicon. [Online, 2001.] Robert Graham Web Site. http://www.linuxsecurity.com/resource_files/documentation/hacking-dict.html.
A transfer of information that violates a computer's built-in security systems. A covert storage channel refers to depositing information in a memory or storage location that can be accessed by different security clearances. A covert timing channel is the manipulation of a system resource in such a way that it can be detected by another process.