The next threat to your privacy could be hovering over head while you walk down the street.

video http://money.cnn.com/video/technology/2014/03/19/t-drone-steals-pho...

Hackers have developed a drone that can steal the contents of your smartphone -- from your location data to your Amazon (AMZN, Fortune 500) password -- and they've been testing it out in the skies of London. The research will be presented next week at the Black Hat Asia cybersecurity conference in Singapore.

The technology equipped on the drone, known as Snoopy, looks for mobile devices with Wi-Fi settings turned on.

Snoopy takes advantage of a feature built into all smartphones and tablets: When mobile devices try to connect to the Internet, they look for networks they've accessed in the past.

"Their phone will very noisily be shouting out the name of every network its ever connected to," Sensepost security researcher Glenn Wilkinson said. "They'll be shouting out, 'Starbucks, are you there?...McDonald's Free Wi-Fi, are you there?"

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That's when Snoopy can swoop into action (and be its most devious, even more than the cartoon dog): the drone can send back a signal pretending to be networks you've connected to in the past. Devices two feet apart could both make connections with the quadcopter, each thinking it is a different, trusted Wi-Fi network. When the phones connect to the drone, Snoopy will intercept everything they send and receive.

"Your phone connects to me and then I can see all of your traffic," Wilkinson said.

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