Information technology has extensively changed the world. On the same time it delivers efficiency and convenience, security problems in cyber systems have also caused a lot of losses, to both individuals and corporations. The strong willing to solve these problems thus providing a much safer and better cyber world brought me to the research area of system security. Currently, I am most interested in topics related to malware, web security, intrusion detection and botnets. I am also interested in software assurance, virtualization, operating systems and compilers.