CISSP-ISSMP: Information Systems Security Management Professional

Integrity protects information from improper or unauthorized modification, including changes attempted by unauthorized entities and unauthorized changes attempted by otherwise authorized personnel or processes. It also requires information to remain accurate, complete, and consistent with related records and the real-world state it represents. Attribution of an individual’s actions is an accountability function rather than an integrity property. NIST defines integrity as guarding against improper information modification or destruction.