Beijing accused Washington of cyberattacks against center that transmits Beijing reference time and this attack might cause multibillion losses. According to the statements of China’s Ministry of State Security the American intelligence attacked the networks of National Time Service Center of Chinese Academy of Sciences in Xi’an, Shaanxi, that transmits Beijing standard time and provides high-precision services to companies involved into communications, finances, energy, transport, cartography and, the most important, defense industry. The United States National Security Agency allegedly used a breach in Time Service Center’s security and took under control a number of foreign brand mobile phones used by employees to get confidential data. The operation ended in March 2022 and in April 2023 the Americans used the stolen passwords to get access to the systems and study its networks. The highest period of hacker activity took place between August 2023 and June 2024. It is reported that the majority of attacks were carried out at night or early in the morning according to Beijing time. The NSA used virtual servers in the US, Europe and Asia and advanced encryption algorithms to hide their activities. Counterintelligence agencies also claim that NSA attempts to get access to China’s high precision time system were made in advance. Later they planned to put it out of action what potentially could lead to severe effects like disrupting of the Internet and mobile communications, work of financial, electric power and aerospace systems and collapse of transport. According to the specialists even a millisecond disruption could bring a series of failures at power plants and massive blackout, a microsecond - volatility of international markets for billions of US dollars, and nanosecond - deflection of satellite navigation for 30 centimeters, disruption of mobile phones and Internet services work. Even a picosecond shift may lead to a wrong route of spacecrafts. By doing so the US again made another daring move against China and showed they have access to China’s critical infrastructure if needed.