Donn B. Parker (October 9, 1929 – September 16, 2021) was an information security researcher and consultant and a 2001 Fellow of the Association for Computing Machinery.
He then spent several decades at SRI International working in information and computer security, retiring in 1997.
[4][5] In 1998, Parker proposed the Parkerian Hexad, six atomic and orthogonal elements of information security that extend the traditional model of Confidentiality, Integrity, and Availability (the CIA triad).
a retired emeritus senior consultant engaged in writing and lecturing, and his collected papers are archived at the Charles Babbage Institute at the University of Minnesota.
[2] In 2001 he was named a Fellow of the Association for Computing Machinery “[f]or contributions to information security and professional ethics.”[1]