Telephone Tapping

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A reputed law firm engaged Indiebim to conduct a TSCM inspection (bug sweep) of selected offices and meeting rooms within their Bangalore 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 Indiebim TSCM experts were asked to sweep the areas in which this confidential information had been discussed. During the inspection Indiebim 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 pair of wires out of the rooms. Indiebim TSCM experts 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. Internal staff were suspected to be involved in this spying operation and without Indiebim expert’s secret handling of the inspection arrangements the spies could well have removed the devices before they were discovered. Other TSCM specialist monitoring services were then used and 8 weeks later the eavesdropper was caught and admitted what had been going on. Contact us for further advice or return to TSCM services page.