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Data integrity is

[t]he state that exists when computerized information or data is the same as that in the source documents and has not been exposed to accidental or malicious modification, alteration, or destruction.[1]
[t]he attribute of data that is related to the preservation of its meaning and completeness, the consistency of its representation(s), and its correspondence to what it represents.[2]
[t]he property that data is complete, intact, and trusted and has not been modified or destroyed in an unauthorized or accidental manner.[3]
[t]he property that data has not been altered or destroyed in an unauthorized manner.[4]


  1. Auditing and Financial Management: Glossary of EDP Terminology, at 6.
  2. DoD Instruction 5200.40, at 9 (E2.1.16).
  3. NICCS, Explore Terms: A Glossary of Common Cybersecurity Terminology (full-text).
  4. ITU, "Compendium of Approved ITU-T Security Definitizons," at 15 (Feb. 2003 ed.) (full-text).

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