The increasing potential for interactivity of different
technologies is bringing us devices which are the combination of two different
concepts apparently not designed for working together.
For example we can have internet-operated home appliances
that can be activated from work so that your oven or bath can be warm when you
are home, or, talking about surveillance technology, there are listening
devices that work like a mobile phone… without actually BEING a mobile phone!
The trick is easy: These so called GSM Audio Transmitters are equipped with a SIM card, and are configured to eavesdrop conversations
around them, relaying them to a third-party listener via a simple phone call.
Just like the oven or bath of the example above, they can be
activated or configured remotely, simply by SMS (don’t forget that a SIM card
is actually a phone number), so sending a particular SMS message would result
in activating/deactivating the device.
This kind of listening device is twice the size of a 2 Euro
coin, is battery-equipped and due to its size, it can easily be hidden in cars,
homes, offices etc. It can be purchased online from specialized spy shops.
One may worry about the quality of sound recorded by this
particular kind of bugs, especially those installed in cars. In order to solve
this problem, the GSM listening devices are equipped with a particular
processing software, which filters out the background noise and disturbances. This
software can also be set to two different levels of filtering, depending on
whether the car engine is on or off.
It can also be used to track down movements of the vehicle
under surveillance, as it would automatically send am SMS when the vehicle itself
is started or turned off.
In a few words, if you are concerned about the ones you
trust (family members, business partners, employees), a device as small as two
coins would allow you to make sure that your trust is well placed, and it would
do it… by phone!
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Submited by : Zecon Solution