Integrity is the property that data is accurate and has not been improperly modified or destroyed.
Integrity ensures that data and systems are not altered in an unauthorized or undetected way. Techniques include cryptographic hashes, digital signatures, authenticated encryption, and strong change controls.
The property whereby information, an information system, or a component of a system has not been modified or destroyed in an unauthorized manner.
A state in which information has remained unaltered from the point it was produced by a source, during transmission, storage, and eventual receipt by the destination.