An American company says it has successfully tested wireless-blocking paint. EM-SEC Technologies, in a release last week, said its "Coating Solution", applied to a test facility, had successfully protected "wireless devices and other electronic equipment".
According to the company, "a one-time application of the coating creates an 'electromagnetic fortress' by preventing airborne hackers from intercepting signals". EM-SEC reckon this would be useful for corporate offices, boardrooms, server and computer rooms, and R&D labs. It seems that wireless nets can be operated without trouble inside a painted building or room.
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Of course, most black hats in the commercial world aren't in this league, and indeed it could be said that many corporate Wi-Fi users might do better to enable their built-in encryption than redecorate the office with radio-proof paint. Especially if they want to use their mobile phones, or look out of the window now and then.
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Still, products like this seem bound to find a wide market. Cinemas or theatres might use such tech to cut off mobile phones, avoiding the legal issues around jamming.
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