Cell phone location analysis is useful in criminal investigations in several different ways. Your location information is valuable, and everyone wants access to it. It might be that no one retrieves that information, but it is there for the taking. Now that job is obsolete the cell phone in your pocket does all of this automatically. Before cell phones, if someone wanted to know all of this, he would have had to hire a private investigator to follow you around taking notes. In 2012, researchers were able to use this data to predict where people would be 24 hours later, to within 20 meters. The accumulated data can probably paint a better picture of how you spend your time than you can, because it doesn’t have to rely on human memory. It tracks-since it knows about all the other phones in your area-whom you spend your days with, whom you meet for lunch, and whom you sleep with. It tracks how often you go to church (and which church), how much time you spend in a bar, and whether you speed when you drive.
It tracks where you like to spend your weekends and evenings. Your cell phone tracks where you live and where you work. This is a very intimate form of surveillance. Cell phones really are great, and they can’t work unless the cell phone companies know where you are, which means they keep you under their surveillance. You probably hadn’t thought about it, but now that I’ve pointed it out, you might well think it’s a pretty good bargain. Yet every morning when you put your cell phone in your pocket, you’re making an implicit bargain with the carrier: “I want to make and receive mobile calls in exchange, I allow this company to know where I am at all times.” The bargain isn’t specified in any contract, but it’s inherent in how the service works.
It seems perfectly normal to pull this device out of your pocket, no matter where you are on the planet, and use it to talk to someone else, no matter where the person is on the planet. This cute, sleek, incredibly powerful tool has become so central to our lives that we take it for granted. If you need to be convinced that you’re living in a science-fiction world, look at your cell phone. Social Norms and the Big Data Trade-off Acknowledgments Notes Index
#Panoply 44236 red code#
SELECTED BOOKS BY BRUCE SCHNEIER Carry On: Sound Advice from Schneier on Security (2013) Liars and Outliers: Enabling the Trust That Society Needs to Thrive (2012) Schneier on Security (2008) Beyond Fear: Thinking Sensibly about Security in an Uncertain World (2003) Secrets and Lies: Digital Security in a Networked World (2000) Applied Cryptography: Protocols, Algorithms, and Source Code in C (19)
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