Smart TVs Are Data-Collecting Machines, New Study Shows
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Smart TVs are data-collecting machines, new study shows
Add smart TVs to the growing list of home appliances guilty of surveilling people's movements. A new study from Princeton University shows internet-connected TVs, which allow people to stream Netflix and Hulu, are loaded with data-hungry trackers.
"If you use a device such as Roku and Amazon Fire TV, there are numerous companies that can build up a fairly comprehensive picture of what you're watching," Arvind Narayanan, associate professor of computer science at Princeton, wrote in an email to The Verge. "There's very little oversight or awareness of their practices, including where that data is being sold."
Of course, data is part of the reason TVs have gotten so cheap. Today, Roku's sell for less than $200, subsidized in part by targeted advertising. Technically, people agree to have their data sold when they set up their devices. But many aren't aware it's even happening.
Technically, people agree to have their data sold when they set up their devices
That's true for other smart home technology, too. In a different study, researchers at Northeastern University looked at 81 smart home devices and found that some, including Amazon's Ring doorbell and Alexa, and the Zmodo doorbell, monitor when a user talks or moves, even when they're not using the device. "The app used to set up the [Ring] device does not warn the user that the doorbell performs such recording in real time, the doorbell offers no indication that recording is occurring, and the only disclosure is in fine print as part of the privacy policy," the paper says.
To understand how much surveillance is taking place on smart TVs, Narayanan and his co-author Hooman Mohajeri Moghaddam built a bot that automatically installed thousands of channels on their Roku and Amazon Fire TVs. It then mimicked human behavior by browsing and watching videos. As soon as it ran into an ad, it would track what data was being collected behind the scenes.
Some of the information, like device type, city, and state, is hardly unique to one user. But other data, like the device serial number, Wi-Fi network, and advertising ID, could be used to pinpoint an individual. "This gives them a more complete picture of who you are," said Moghaddam. He noted that some channels even sent unencrypted email addresses and video titles to the trackers.
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