THE PARKERIAN HEXED

THE PARKERIAN HEXAD-

The Parkerian hexad, named for Donn Parker and introduced in his book Fighting Computer Crime, provides us with a somewhat more complex variation of the classic CIA triad. Where  the CIA triad  consists  of confidentiality, integrity, and  availability,  the  Parkerian  hexad  consists  of  these  three  principles, as well as possession or control, authenticity,  and  utility  for a total  of six principles, as shown  in Figure 25 below.  Although it is considered by some to be a more complete model, the Parkerian hexed is not as widely known as the CIA triad. If we decide to use this model in discussion of a security situation, we should be prepared to explain the difference to the uninitiated.