The IEEE Special Issue on Data Mining for Cybersecurity (IEEE Intelligent Systems, Vol. 33, Issue No. 02, March/April 2018) co-edited by Internet Governance Lab Faculty Fellow Dr. Nathalie Japkowicz has now been published. Dr. Japkowicz, Professor in the Department of Computer Science at American University, co-edited the volume with Dr. Yuval Elovici, Professor in Software and Information Systems Engineering and Director of the Deutsche Telekom Laboratories at Ben-Gurion University in Israel.