Park a van filled with monitoring gear near an embassy and listen for the faint radio signals that computers routinely emit when they are on. Analyze those signals for clues to the data that are on the computers. Now researchers at the University of Cambridge, home of groundbreaking work in intelligence over the years, are trying to adapt this technology to the fight against software piracy. With special code written into software, they say, computers could be made to broadcast beacons that would carry several hundred yards and identify the software they were running, complete with serial numbers of each copy. All rights reserved.
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