Google China
There was speculation that "insiders" had been involved in the attack, with some Google China employees being denied access to the company's internal networks after the company's announcement. In February 2010, computer experts from the U.S. National Security Agency claimed that the attacks on Google probably originated from two Chinese universities associated with expertise in computer science, Shanghai Jiao Tong University and the Shandong Lanxiang Vocational School, the latter having close links to the Chinese military.