Integrity

{{subpages{{ Integrity, in information security, refers to the assurance that data retrieved from an information system has the same meaning as when it was entered. In U.S. law, it refers to the "Guarding against improper information modification or destruction, and includes ensuring information non-repudiation and authenticity."

Again, a simple definition is easy, but a detailed definition is hard.

Two recognized subsets are:

• Atomic integrity, or the assurance that an individual record is unchanged
• Sequential integrity, or the assurance that records of a file are not duplicated, deleted, or out of sequence