How can a self-driving car learn to avoid mistakes? How can researchers spot errors in a malware detection system before they cause problems? These are some of the questions new assistant professor Yinzhi Cao explores in his research. Cao comes to Johns Hopkins from Lehigh University, where he served as an assistant professor for the past three years. He earned his doctorate from Northwestern University and completed his postdoctoral work at Columbia University. He has a bachelor’s degree in electronic engineering from Tsinghua University in Beijing.  Cao’s research interests include web security, network security and mobile security. He examines these problems from multiple perspectives. For example, he has both worked to improve technology to track users across browsers while also developing a browser that allows for greater anonymity. He will be teaching web security in the fall semester.