The CIA of information security is: confidentiality, integrity and availability. These are the three principles or objectives of information security.

Additional services provided by security controls include: authentication and non-repudiation.

Confidentiality can be achieved with a lock on a cabinet or door. Integrity can be achieved through hashing or versioning. Availability can be achieved through backups and mirroring.

This information is presented for educational purposes primarily to assist candidates seeking the Certified Information Systems Security Professional credential.

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