Hisao Nashiwa is a threat analyst, working for Internet Initiative Japan as a CSIRT member of the company. His main jobs include incident response, analyzing malware and analyzing network traffic, observing malicious activities over nine years. He researches cyber crimes such as exploit kits and malware. He has five years of experience and knowledge in analyzing malware. He is a speaker and a trainer for international conferences such as Black Hat and FIRST TC multiple times.