TOPSEC is the Leading Network Security Enterprise of China. It is the earliest and largest high-tech enterprise committed in the technical research, product development and security service in the network security area. At the same time, TOPSEC is striding forward to collectivize and internationalization; strive to become a competitive enterprise of China. TOPSEC was founded in 1995, the headquarter and its R&D center are located in Beijing. It has 32 branches in almost every province in China, such as Shanghai, Guangzhou, Harbin, Shenyang, Xi’an, Jinan, Huhehot, Chengdu and Shenzhen, etc. More than 1000 staff working in the area of information security, R&D professionals, security consultants and solution services.