How should secret-related scientific research sites take security measures against eavesdropping?
Secret research sites are prime targets for the theft of secrets by adversaries and foreign intelligence agencies. Safety devices such as electronic monitoring, anti-theft, and alarm should be installed according to actual needs, and guards should be strengthened.
Counterintelligence in secret places
Avoid eavesdropping by establishing a dedicated telephone network and using optical fiber transmission; build electromagnetic shielding rooms, shielding covers, cell phone jammer, etc. to avoid wireless eavesdropping. Listen to the vibration by limiting the size of the sound source, implementing sound insulation protection and pipe muffling, fixing sound masking devices, etc.
Anti-theft photos of secret locations.
Use stealth technology to prevent spy satellites and high-altitude reconnaissance aircraft from stealing location photos; use control methods such as entry-exit security inspection, access control technology inspection, video surveillance, as well as inspection methods such as microelectronic equipment detection and metal detection to prevent mobile phone and other photos from being stolen.
The secret place is leak-proof.
For electromagnetic leakage and emission, low-leakage computers can be used in places where classified equipment is scattered and with a high degree of confidentiality; places where classified equipment is concentrated and with a high degree of confidentiality, electromagnetic shielding rooms and electromagnetic shielding cabinets. Equipment that handles classified and sub-classified status information can be fitted with video blockers.