kangaroo code - A clumsily-written, disorganized computer program created by a novice.

Kerberos {cur-bur-ose} - A security system developed at MIT that authenticates users. It does not provide authorization to services or databases; it establishes identity at logon, which is used throughout the session.

key - large number used by a cryptographic algorithm to encrypt or decrypt data. A person's public key, for example, allows other people to encrypt messages to that person. The encrypted messages must be decrypted with the corresponding private key.

keyboard - A hardware device consisting of a number of mechanical buttons (keys) which the user presses to input characters to a computer.

keylogger – any program that records keystrokes. The term tends to be used in malware circles for programs that surreptitiously record keystrokes and then make the log of keyboard activity available to someone other than the logged user. Although more common in Trojan horse programs and remote access Trojans, key loggers are sometimes used in the payloads of viruses. keypad - A small keyboard; usually refers to the keys on a calculator or the numerical keypad on a computer keyboard, which can be used with a calculator desktop utility.

kill - To delete a file or message.

kilobyte {kil-oh-bite} [KB] - 1,024 bytes.

KISS {kiss} - Keep It Simple, Stupid

kluge {klooje} - A system and especially a computer system made up of poorly matched components.
Something that works for the wrong reason.

klugey {KLOO-jee} - Jury-rigged; awkwardly designed; referring to hardware or software. (Jury rigging refers to makeshift repairs or temporary contrivances, made with only the tools and materials that happen to be on hand. Originally a nautical term, on sailing ships a jury rig is a replacement mast and yards improvised in case of damage or loss of the original mast.)