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On Her Microphone's Secret Service: How Spies, Anyone Can Grab Crypto Keys from the Air


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Parabolic mic

The boffins' mic setup ... Not exactly subtle, but effective.

Credit: Daniel Genkin et al.

Discerning secret crypto keys in computers and gadgets by spying on how they function isn't new, although the techniques used are often considered impractical.

From The Register
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