Skip to main content  How your movements create a GPS
'fingerprint'  Doug Gross, CNN A report from researchers at MIT
and other institutions shows how anonymous data can be used to
identify mobile users.   • Report: It's easy to identify
smartphone users by their movements   • Researchers from MIT and
elsewhere tracked 1.5 million people for 15 months   • Each
mobile user's daily movements are unique and create a
"fingerprint"   • Privacy advocates worry how law enforcement
and others may use that data  (CNN) -- Can you be identified
only by where you take your phone? Yes, according to a new
study, which finds it's not very hard at all.  While most of us
are free to go wherever we want, our daily and weekly movement
patterns are pretty predictable. We go to work, to school, to
church, to our neighborhood gym, grocery store or coffee shop,
and we come home -- all quietly tracked by the GPS in our phone.
And with nothing more than this anonymous location data, someone
who wanted to badly enough could easily fi