Georgios Portokalidis has joined the Computer Science Department as an Assistant Professor. He obtained his doctorate degree from Vrije Universiteit Amsterdam in 2010, and worked a postdoctoral researcher at Columbia University between 2010 and 2012. His research interests are mainly around the area of systems security, but extend to network monitoring, operating systems, and virtualization technologies. His work focuses on improving the security of existing software on commodity systems by employing traps (like honeypots) and using virtualization to retrofit software with protection mechanisms. More recently, he has been involved with improving software reliability and availability, mobile device security, and privacy issues in the Cloud.