Dimitris Mitropoulos is a software and security engineer at the Greek Research and Technology Network (GRNET). Dr. Mitropoulos holds a BSc in Informatics and Telecommunications from the National and Kapodistrian University of Athens, an MSc in Information Systems from the Athens University of Economics and Business and a PhD in Cyber Security from the Athens University of Economics and Business. He has also been a Postdoctoral researcher at the Network Security Laboratory (NSL) of Columbia University in the City of New York. He has worked in the industry as a software engineer and has been involved in several EU and US funded R&D projects. His research interests include application security, systems security, software evolution and software engineering. He is a member of ACM, IEEE, SysSec, OWASP, and an official writer for the XRDS:Crossroads blog of ACM.