Over the years, I've worked on a number of areas from P2P networks, online social networks, cognitive radios/dynamic spectrum, graph mining and modeling, user behavior analysis. Since 2016, I've focused on security and privacy in machine learning and wearable systems, including authentication and biometrics. My broad interests have led me to publish at a range of top conferences, including USENIX Security/Oakland/CCS, NeurIPS/CVPR, IMC/WWW, CHI/CSCW, and SIGCOMM/NSDI/Mobicom.