Stealth wallpaper

Stealth wallpaper is a material designed to prevent an indoor Wi-Fi network from extending or "leaking" to the outside of a building, where malicious persons may attempt to eavesdrop or attack a network. While it is simple to prevent all electronic signals from passing through a building by covering the interior with metal, stealth wallpaper accomplishes the more difficult task of blocking Wi-Fi signals while still allowing cellphone signals to pass through.

The first stealth wallpaper was originally designed by UK defense contractor BAE Systems [1] In 2012, The Register reported that a commercial wallpaper had been developed by Institut Polytechnique Grenoble and the Centre Technique du Papier with planned sale in 2013. This wallpaper blocks three selected Wi-Fi frequencies, but nevertheless does allow GSM and 4G signals to pass through the network, therefore allowing cell phone use to remain unaffected by the wallpaper.[2]

See also

References

External links

This article is issued from Wikipedia - version of the Wednesday, August 14, 2013. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.