The Threat:

Arguably one of the biggest threats of confidential conversations leaving a room or area of a facility is the ordinary loudspeaker or well-shielded microphone. When conducting a proper TSCM investigation, it is important to inspect all building wiring to ensure that no conductors are being used to transport stolen audio or video information. It is fairly simple for someone to attach a microphone to any two existing conductors present in an area and pass audio through a speaker “down the line” to be received elsewhere.

Continue reading “Are You Being Overheard?”