A 2008 Fellow of the Association for Computing Machinery, Parker was a leading information security researcher and consultant. He received many awards in the information security field. He lectured at conferences, seminars, and universities worldwide. He was the author of six books on computer crime and security as well as hundreds of articles, papers, and public reports.
He was the subject writer on computer crime for the *Encyclopædia Britannica*, Groliers Encyclopedia, Microsoft Encarta Encyclopedia, and the Encyclopedia of Computer Science (Nature Publishing Group, Anthony Ralston, Editor). In 2002, Parker proposed the Parkerian Hexad, six atomic and orthogonal elements of information security that extend the traditional model of Confidentiality, Integrity, and Availability (CIA triad).
