Monday's episode of the Daily did a pretty good job with this. It opens you up to a myriad of ways for blackmailing or other nasty things through correlation at

Monday's episode of the Daily did a pretty good job with this. It opens you up to a myriad of ways for blackmailing or other nasty things through correlation attacks. The data itself is for sale and anyone with the money for it can use it however they want. Hypothetically you could make it as extreme as you want, with what's available now the following could happen with just your location data correlated with your work or home address: Your insurance company will increase your premium if they see you're often out late at night. Your employer could see if you use a vacation day to, possibly, apply at a competitor without him knowing it. Workers at a nuclear powerplant might get approached by foreign actors intercepting their commute.