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Tuesday, April 26, 2005

Wi-Fi-proof sheet gets UK government approval

Wireless hackers could soon face problems when trying to steal information, now that the British government has endorsed a transparent film that can block Wi-Fi transmissions and other wireless signals from travelling through windows.

The blast-proof film, called Spyguard, can be laminated or fitted inside windows to prevent remote eavesdroppers penetrating rooms with infrared or Wi-Fi signals to steal information or access private networks.

To stop Wi-Fi signals “leaking” from a room, the walls are also covered with a layer of paint that contains the same metals as the SpyGuard film.  The film can even prevent hackers from stealing information from light flicker emitted from computer monitors and reflected on a window, claims GlassLock UK, a company that sells the film in the UK.

“The film is developed by the US National Security Agency,” said John Hall, managing director of GlassLock UK.  “The only way you can get hold of it here is through us.”  CESG (the Communications-Electronics Security Group), the information assurance arm of GCHQ, has backed the product, but the intelligence community is keeping an eye on who buys it.  “We have to get permission to sell it,” said Hall.  “We have to tell MI5 who we sell it to.  It’s no problem unless they’re known terrorists.”

GlassLock is demonstrating the product at Infosecurity Europe 2005 in London.,39020336,39196444,00.htm

Posted on 04/26