Matchstick-Sized Sensor Can Record Your Private Chats Outdoors

wabrandsma sends this story from New Scientist: "A sensor previously used for military operations can now be tuned to secretly locate and record any single conversation on a busy street. [A] Dutch acoustics firm, Microflown Technologies, has developed a matchstick-sized sensor that can pinpoint and record a target's conversations from a distance. Known as an acoustic vector sensor, Microflown's sensor measures the movement of air, disturbed by sound waves, to almost instantly locate where a sound originated. It can then identify the noise and, if required, transmit it live to waiting ears. Security technologist Bruce Schneier says this new capability is unwelcome – particularly given the recent claims about the NSA's success at tapping into our private lives. 'It's not just this one technology that's the problem,' Schneier says. 'It's the mic plus the drones, plus the signal processing, plus voice recognition.'"

Re:a few laws of physics problems here

[Anonymous Coward]

I think the coarse hair would block the sound waves on a pubic street, thus rendering the technology useless.

Re:a few laws of physics problems here

[ebno-10db]

That wouldn't be a problem on Brazilian streets.

Re:a few laws of physics problems here

[ebno-10db]

I just got back from a pleasure trip. I took my mother-in-law to the airport.