Nicolas Kourtellis holds a PhD in Computer Science & Engineering from the University of South Florida, USA (2012). He has done research @Yahoo Labs, USA and @Telefonica Research, Spain, on online user privacy and behavior modeling, Internet measurements and distributed systems, with 70+ published peer-reviewed papers. Lately, he focuses on CyberPrivacy (Privacy-preserving Machine Learning (ML) and Federated Learning on the edge, user online privacy and PII leaks), etc.) and CyberSafety (modeling and detecting abusive, inappropriate or fraudulent content on social media using data mining and ML methods, and how they can be applied on the edge on user-owned or network devices). He has served in many technical program committees of top conferences and journals (e.g., WWW, KDD, CIKM, ECML-PKDD, TKDD, TKDE, TPDS, etc.), and presented his work in top academic and industrial venues such as The Web Conference (WWW), Apache BigData Europe and North America, and Mobile World Congress Barcelona.