Vasilios Mavroudis is a Doctoral Researcher in the Information Security Group at University College London, where he studies the security and privacy aspects of digital ecosystems with a focus on emerging technologies and previously unknown attack vectors. His study on ultrasound tracking has received widespread attention and is considered the seminal work on the security of that ecosystem. He recently released a prototype of a novel high-assurance cryptograpic hardware architecture, while in the past he developed auditing tools for the public key infrastructure of Deutsche Bank and studied large-scale security threats in telecommunication networks. Mavroudis holds an M.Sc. in information security from University College London, and a B.Sc. in computer science from University of Macedonia, Greece.