Senior Research Fellow
Zwienenberg started dealing with computer viruses in 1988 after encountering the first virus problems at the Technical University of Delft. His interest thus kindled and studied virus behavior and presented solutions and detection schemes ever since. Initially starting as an independent consultant, in 1991 he co-founded CSE Ltd. In November 1995 Zwienenberg joined the Research and Development department of ThunderBYTE. In 1998 he joined the Norman Development team to work on the scanner engine. In 2005 Zwienenberg took the role of Chief Research Officer. After AMTSO – Anti Malware Testing Standards Organization - was formed, Zwienenberg was elected as president. He is serving on the board of AVAR and on the Technical Overview Board of the WildList. In 2011 Zwienenberg was looking for new opportunities and started as a Senior Research Fellow at ESET. In April 2012 Zwienenberg stepped down as President of AMTSO to take the role as CTO and later as CEO. In 2016 he rejoined the AMTSO board for another two-year run. He also is the Vice Chair of the Executive Committee of IEEE ICSG. In 2018, Zwienenberg joined the Europol European Cyber Crime Center (EC3) Advisory Group as an ESET representative.
Zwienenberg has been a member of CARO since late 1991. He is a frequent speaker at conferences – among these Virus Bulletin, EICAR, AVAR, FIRST, APWG, RSA, InfoSec, SANS, CFET, ISOI, SANS Security Summits, IP Expo, Government Symposia, SCADA seminars, etc. - and general security seminars. His interests are not limited to malicious code but have broadened to include general cybersecurity issues and encryption technologies over the past years.