David Harley David Harley is a security researcher, author and editor. His academic background is in social sciences and computer science. From 1989 to 2006 he worked in medical informatics, specializing in security and data protection. Since setting up the Small Blue-Green World consultancy in 2006, he has worked closely with ESET, where he is a Senior Research Fellow. He has authored, co-authored and/or edited around a dozen security books, including Viruses Revealed and the AVIEN Malware Defense Guide. VB2017 sees his 16th Virus Bulletin paper, which is probably enough for one lifetime. He claims to be semi-retired but remains obsessed with the psychosocial elements of security and the lack of it. His leisure time is mostly devoted to composing music and playing guitar.