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A Cheap Spying Tool With a High Creepy Factor
Brendan O’Connor is a security researcher. How easy would it be, he recently wondered, to monitor the movement of everyone on the street – not by a government intelligence agency, but by a private citizen with a few hundred dollars to spare?
Mr. O’Connor, 27, bought some plastic boxes and stuffed them with a $25, credit-card size Raspberry Pi Model A computer and a few over-the-counter sensors, including Wi-Fi adapters. He connected each of those boxes to a command and control system, and he built a data visualization system to monitor what the sensors picked up: all the wireless traffic emitted by every nearby wireless device, including smartphones.
I liked this article because; A). He used Rasberry PI computers, and, B). It makes me think how much "offline" data McDonalds, Starbucks, Google and other businesses who offer "FREE WiFi" are collecting about people who do not think they can;t be tracked just because they are not using the device at the moment.
settings were already set to the off position as default
Android 4.3's New 'Always-On' Wi-Fi Feature Buried in Settings
It might be a bit much to say that one of the new features packed into Android's 4.3 upgrade is controversial, but it's definitely one worth knowing a little bit more about. As those who have taken a spin around the Android 4.3 ROM have noticed, Google has made a change to devices' Wi-Fi settings in Android 4.3.
"To improve location accuracy and for other purposes, Google and other apps may scan for nearby networks, even when Wi-Fi is off," describes Google.
Note to paranoids: remove batteries from device and store device in electrically shielded container when not in use.