How is integrity defined in the context of computer security?

Integrity in the context of computer security refers to maintaining the accuracy and consistency of data throughout its lifecycle. This principle ensures that information is not altered or tampered with in an unauthorized manner, thereby preserving its original state and preventing any unauthorized modifications. When data integrity is upheld, users can trust that the information they are working with is reliable and has not been compromised.

The other concepts mentioned, while important in the broader realm of computer security, do not directly define integrity. Preventing unauthorized access focuses more on confidentiality, while enhancing the speed of data transmission relates to performance rather than integrity. Ensuring data is easily retrievable pertains to accessibility, not integrity, which is about the correctness and trustworthiness of the data itself.