Legal analysis: it is forbidden to carry and use public mobile phones when performing combat, combat readiness, training and exercise tasks; It is strictly forbidden to bring mobile phones into war rooms, intelligence rooms, confidential rooms, communication hubs, classified meetings, military aircraft and ships (boats), important warehouses, missile launching positions, weapons and equipment test sites, combat readiness projects and other classified places; It is strictly forbidden to use mobile phones to handle official business in places with wired communication conditions; It is forbidden to use public mobile phones to talk about, transmit or store classified information; It is strictly forbidden to use a mobile phone to connect to the Internet or use a mobile phone with real-time video calling function in the office.

Legal basis: Article 8 of the Civil Law of People's Republic of China (PRC) stipulates that civil subjects shall not violate the law, public order and good customs when engaging in civil activities. Article 55 of the National Defense Law of People's Republic of China (PRC) citizens shall receive national defense education. Citizens and organizations shall protect national defense facilities and shall not destroy or endanger them. Citizens and organizations shall abide by the confidentiality provisions, and shall not disclose state secrets in national defense, and shall not illegally hold secret documents, materials and other secret articles in national defense.