Bachelor of Information Science (1986), graduated in (technical) EDP Auditing from the Free University of Amsterdam (1991).
Joined Moret Ernst & Young in 1988, senior manager since 1993. Hans has extensive experience in audits on computer and network security with banks, insurance companies and S.W.I.F.T.
Coordinator within Moret Ernst & Young for the development of access control audit approaches. Co-program leader at the Ernst & Young US and European Technical Update conferences for information systems auditors (subject logical access path analysis). Lectures and publications on computer and network security.