Daily Archives: June 13, 2015


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David Barrett reports in the Daily Telegraph that telephone masts which can listen to mobile phone conversations without the owner’s permission are being operated in Britain. The devices, technically known as IMSI catchers, but also referred to stingrays, trick handsets into thinking they are genuine mobile phone towers in order to monitor calls and other data including texts and emails.  They have been used in a number of foreign countries to target the communications of criminals, but are difficult to use in a targeted manner and will also hoover up data from innocent people’s mobile phones. Police have refused to discuss whether they are behind the installation of the masts, at least 20 of which were uncovered in London in an investigation by the Sky News television channel.

Fake Mobile Phone Masts Spy on your Calls