I lead the Security research group of NEC Labs in Germany. I joined NEC Labs in April 2012 as a research staff member. Before then, I was working as a postdoctoral researcher in the Institute of Information Security of ETH Zurich, Switzerland. I hold a Master of Science degree in Information Networking from Carnegie Mellon University (CMU), and a PhD degree in Computer Science from ETH Zurich. I am interested in all aspects of security and privacy with a focus on cloud security, IoT security, network security, and Blockchain security.