Ming-chieh's (Nanika) major areas of expertise include vulnerability research, exploit techniques, malware detection and mobile security. He has 10+ years of experience on vulnerability research on Windows platform and malicious document and exploit. He has discovered numerous Windows system and document application vulnerabilities, such as Microsoft Office, Adobe PDF, and Flash. He frequently presents his researches at security conferences, including Black Hat USA 2012, Syscan Singapore/Taipei/Hong Kong 08/10, Hacks in Taiwan Conference 05/06/07/09/10/12. Ming-chieh is a staff research engineer with Trend Micro. He and Sung-ting are members of CHROOT security group in Taiwan.