The People's Liberation Army promulgated the "Ten Flags". First, prohibit classified computers from surfing the Internet. Second, it is strictly forbidden for private computers to access classified networks. Three, it is strictly prohibited to store private information on classified mobile carriers. Four, it is strictly forbidden for private mobile operators to store confidential information. Five, prohibit mobile carriers that store or have stored confidential information from accessing the Internet. Six, it is strictly prohibited to store, process or transmit confidential information on networked computers. Seven, it is strictly prohibited to cross connect computers between classified networks and the Internet. Eight, prohibit the cross use of mobile carriers between classified computers and networked computers. Nine, it is strictly forbidden to connect private mobile phones, digital cameras, players and other electronic devices to classified computers. Ten, it is strictly prohibited to open a blog online as a soldier, chat and make friends, and apply for a job.