An international law firm engaged QCC to conduct a TSCM inspection (bug sweep) of selected offices and meeting rooms within their Swiss headquarters. The Client suspected eavesdropping after confidential information relating to financial negotiations was leaked. Initial investigations ruled out some common causes of information loss and QCC were asked to sweep the areas in which this confidential information had been discussed.
During the inspection QCC tested the digital telephone system and discovered analogue audio present on spare cables from the telephones in three of the target meeting rooms. Audio was present when the telephones were both on hook and off hook meaning room audio was being passed constantly down a spare pairs of wires out of the rooms.
QCC traced the cables and found that the structured cabling had been and modified and the spares wires had been diverted to terminal blocks under the sub floor within the IT equipment room. This modification was used to connect suitable recorders to the spare pairs containing the room audio.
Inside staff were suspected to be involved in this spying operation and without QCC’s covert handling of the inspection arrangements the spies could well have removed the devices before they were discovered. Other QCC specialist monitoring services were then used and 8 weeks later the eavesdropper was caught and admitted what had been going on.
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