He received his Ph.D. degree in Information Technology from George Mason University, USA. His current research interests include database security, data privacy, vulnerability analysis, intrusion detection, and security metrics. His research has been supported in part by the Discovery Grants from the Natural Sciences and Engineering Research Council of Canada (NSERC) and by Fonds de recherche sur la nature et les technologies (FQRNT). He can be reached at wang@ciise.concordia.ca