Tetsuya Takaoka is a passionate Japanese white hacker. He runs a venture company in Japan that specializes in security consulting services such as pentesting, incident response, forensics. He also has keen interests in education, so he is teaching pentesting and sharing technical knowledge about security on his blog to contribute to the development of cyber human resources in Japan. He holds certifications such as OSCP, CRTO, CISSP(Associate), and Locksmith Level 2.