S.M. Yiu is a Professor at the Department of Computer Science of the University of Hong Kong. Dr. Yiu has received numerous teaching awards including the outstanding teaching award of HKU, best teacher award (twice) of the Faculty of Engineering, HKU, and the teaching excellence award of the Department (more than six times). He is good at presenting difficult concepts using simple and easy-to-understand approaches. He is also the director of the FinTech Research Laboratory of the department and an expert in cryptography and blockchain technology. He is also a popular speaker in the industry in cryptography and blockchain technology. He is also one of the only twelve HKU researchers that appeared on the 2017 list of highly cited researchers in the world by Clarivate Analytics (there are only 152 such researchers in the field of computer science all over the world, and only 4 in Hong Kong).