A complex of the actions to identify the eavesdropped devices includes:
- radio-monitoring facilities in order to discover the active planting used the transmission through radio channels;
- nonlinear areas equipment uses to detect passive eavesdropping;
- inspection for the absence of wired bugs;
- search for the unauthorized surveillance devices;
- preventive inspection of facilities to identify vulnerabilities for bugs planting;
- localization and blocking of active eavesdropping.