Undocumented software features that allow a user to gain computer access to or greater privileges through its use. These features may be a software bug or something added by a programmer during software development that was not removed when the software went into production. A trap door, often considered to be a synonym for “back door,” is frequently used by crackers to facilitate exploits.
See Also: Cracker; Exploits.
Pipkin, D.L. Halting the Hacker: A Practical Guide to Computer Security. Upper Saddle River, NJ: Prentice Hall, 2003.