CIA is an Abbreviation for:

Security Objectives#

Many sources, including NIST.SP.800-53, imply the Security Objectives are: I have yet to figure out why Availability has anything to do with Cryptography Objectives. Whether a resource has Availability or not has nothing to do with CIA unless it is due to a Denial-of-Service Attack

More Information#

There might be more information for this subject on one of the following: