French researchers have created a new type of wallpaper that has the gift to keep WiFi signal and not let him go to the wall. And this without causing decreases telephone or radio signal.

By this method would increase the safety of WiFi, which can be hacked by malicious, or the famous WiFi thieves.

The new type of wallpaper uses a conductive ink containing silver crystals, which will block the operating frequencies of a WiFi router. The router will function normally, but the signal will not pass the wall coverings. So far everything is in prototype stage, and researchers from Grenoble hope to bring the phase commercial wallpaper early next year. A British company has developed a defense similar wallpaper in 2004, but that costs more than 500 pounds per square meter, so there was a viable product.

Researchers at Grenoble Institute say that their solution will cost as much as a conventional wallpaper, although not mentioned any price. It is true that there are flaws in this technology, such as the presence of a ceiling, floor, doors and windows. Researchers said they intend to create and transparent variants of wallpaper for them.