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This is Scientific American's 60-Second Tech. I'm Larry Greenemeier. Got a minute?

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Insurance companies have for years offered a compelling tradeoff to their customers:

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they track your driving habits, you save up to 30 percent off your bill for driving safely.

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But researchers now say that consumers may be giving up too much privacy in the deal.

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If you install the tracking device in your car, insurers like Allstate and Progressive can gather information about when you drive, your starts and stops and your speed.

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To avoid spooking customer fears about Big Brother, most of these devices do not include GPS.

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But computer scientists say they don't need GPS to get a pretty good idea of where you've been.

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In separate experiments, researchers at the University of Denver and Rutgers University wrote algorithms that use a driver's starting point along with the tracking data to estimate where that driver traveled.

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Are drivers worried their data could be used as evidence in criminal investigations or to catch philandering spouses?

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Nah. Surveys find that most people think highly of their skills behind the wheel.

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And they'd rather cut their rates than keep their privacy.

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Thanks for the minute, for Scientific American's 60-Second Tech. I'm Larry Greenemeier.

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