Stealth wallpaper keeps company secrets safe

 作者:谷梁泺沓     |      日期:2019-03-03 01:08:09
By Barry Fox A TYPE of wallpaper that prevents Wi-Fi signals escaping from a building without blocking mobile phone signals has been developed by a British defence contractor. The technology is designed to stop outsiders gaining access to a secure network by using Wi-Fi networks casually set up by workers at the office. It is the work of moments for an employee to connect a paperback-sized Wi-Fi base station to a company network. That person can then wander around the office with their laptop while remaining wirelessly connected to the internet. But it is also the work of moments then …