Mr Driessen told The Telegraph that the equipment and software needed to intercept and decrypt satellite phone calls from hundreds of thousands of users would cost as little as $2,000. His demonstration system takes up to half an hour to decipher a call, but a more powerful computer would allow eavesdropping in real time, he said.
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The Mister Purple writes: It appears that a team of German researchers has cracked the GMR-1 and GMR-2 encryption algorithms used by many (though not all) satellite phones, as described by this article in The Telegraph. Anyone fancy putting a cluster together for a listening party?