Capability of a product to ensure that the state of its system and data are protected from unauthorized modification or deletion either by malicious action or computer error
Electronic signals are said to have integrity when there is no corruption of information between one domain and another, such as from a disk drive to a computer display. Such integrity is a fundamental principle of information assurance. Corrupted information is untrustworthy, yet uncorrupted information is of value.
In common usage, integrity is much more common than its adjectival form, integrous.
Extent to which access to software or data by unauthorized persons can be controlled.