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A fault is

  1. "a condition that causes a device or system component to fail to perform in a required manner."[1]
  2. "[a] weakness of the system that allows someone to circumvent protective controls."[2]
1. A defect in a hardware device or component; for example, a short circuit or broken wire. 2. An incorrect step, process, or data definition in a computer program.[3]


  1. Department of Defense, National Computer Security Center, Glossary of Computer Security Terms (NCSC-TG-004, Ver. 1) (Oct. 21, 1988).
  2. Auditing and Financial Management: Glossary of EDP Terminology, at 8.
  3. IEEE, IEEE Standard Glossary of Software Engineering Terminology (IEEE Std 610.12-1990) (1990) (full-text).

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