Spycraft®
Bug sweep services.
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Introduction
TSCM, or "Technical Surveillance Counter
Measures", is the generic name for the
techniques used to locate electronic surveillance, or
"bugging", devices. These
devices, of course, are nothing new, but advances in
integrated circuit, and microchip, technologies mean
that microphones, and cameras, specifically designed
for clandestine surveillance are smaller, and more sophisticated,
than ever before. Businesses and other organizations,
such as schools, hospitals and hotels, have come to
appreciate the dangers to their privacy, or that of
their clients, from monitoring of confidential conversations,
etc., by unscrupulous individuals, as the result of
disgruntlement, bribery, or blackmail.
TSCM
Equipment & Bug Sweep Services
The process of "counter eavesdropping"
or "bug sweeping" can either
by carried out by a professional organization, often
for a substantial fee, or, if a business or other organization
has sufficient expertise in the field, it can carry
out its own sweeping. In either case,
the cost of the sweep, or the cost
of the equipment required, is likely
to depend on the type of business, the physical size
and complexity - in terms of telephone systems, computer
systems, etc. - of the building(s) concerned, and the
type and level of threat(s) posed. A professional
sweep typically involves a physical search,
and survey, plus an electronic search, including transmission
and power lines.
If
an organization wishes to carry out its own TSCM, any
number of professional-level devices is available. For
the detection of audio only transmissions, RF ("Radio
Frequency") detection meters are available, and,
nowadays, are typically capable of detecting frequencies
between 1MHz and 6GHz, therefore including the latest
4.2GHz and 5.8GHz frequency bands.
Some detection meters feature a bar graph, or similar
display, which helps to determine the proximity of RF
transmissions, but are, nevertheless, small enough to
be worn, unobtrusively, for private detection. For audio
and video, a wireless camera detector, operating in
the frequency bands between 900MHz and 2.5GHz may be
more appropriate; such a detector locks onto any video,
and audio, signals in the immediate vicinity, and plays
them back, typically on a colour, TFT ("Thin Film
Transistor") LCD screen.
Do
bear in mind that some mobile broadband
activities, such as VoIP, or "Voice
over Internet Protocol", are not 100% secure, and
signals can be intercepted not only by cracking the
encryption, but by exploiting weaknesses in the sampling
and compression method employed
