integrity

1. [In INFOSEC, the] quality of an information system (IS) reflecting the logical correctness and reliability of the operating system; the logical completeness of the hardware and software implementing the protection mechanisms; and the consistency of the data structures and occurrence of the stored data. Note that, in a formal security mode, integrity is interpreted more narrowly to mean protection against unauthorized modification or destruction of information. [INFOSEC-99]
2. The prevention of the unauthorized creation, amendment or deletion of information [CESG].
3. A security property of an object that prevents or is used to prevent: – its condition of existence being changed and/or – its contents being changed. This property is relative to some subject population and to some agreed degree of security [ECMATR46].
4. See Data Integrity [7498-2].
5. The prevention of the unauthorized modification of information without detection. [ITSEC].
6. The property that the existence of an object and/or its contents not be destroyed or altered by an unauthorized user. Also, the property that the contents of an object not be altered to unauthorized values [POSIX.6].