satellite navigation systems / mobile phone networks / internet service providers / push technology / everyday home devices / possible wireless / home automation systems / covert radio communications / wireless systems / gas meter / smart phone apps using push technology / home wifi network / energy use / ultrawideband radio systems / wifi network / smart devices / individual devices / software application / manufacturing process / /
NaturalFeature
English Channel / /
OperatingSystem
Microsoft Windows / /
Organization
Saarland University in Germany / British army / /
Person
Heddy Lamarr / Derek Mcauley / /
Position
actress / famous actress / /
Technology
Ethernet / cellular telephone / smart phone apps using push technology / Broadband / push technology / frequency hopping / smartphone / GPS / radio frequency / secret key / home routers / /
How WWI codebreakers taught your gas meter to snitch on you