Luser Attitude Readjustment Tool
According to the
Jargon File, a
Luser Attitude Readjustment Tool (
LART) or
clue stick or
clue by four is "something large, heavy and painful, used to respond appropriately to particularly annoying lusers". Basic LART techniques generally involve turning off the user's access to computer resources.
LARTs are also useful in ISP abuse departments, particularly against spammers.
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