Wei Xu Wei Xu is a security researcher at Palo Alto Networks. His current research interests include web security, network security and security data analysis. His past research works have been published in both academic and industry circles. He was a speaker at VB2012/2014/2015 and Blackhat 2013. He received his B.S and M.S. degrees in electrical engineering from Tsinghua University, Beijing,China, in 2005 and 2007 respectively. He obtained his Ph.D degree in computer science from Penn State University in 2013.