Facebook Is Using Your Phone's Location To Suggest New Friends (fusion.net)

Fusion's Kashmir Hill is reporting that Facebook is using your phone's location to suggest new friends. It's unclear exactly when the social juggernaut began doing this, but a number of instances suggest it only started recently. From the report:Last week, I met a man who suspected Facebook had tracked his location to figure out who he was meeting with. He was a dad who had recently attended a gathering for suicidal teens. The next morning, he told me, he opened Facebook to find that one of the anonymous parents at the gathering popped up as a "person you may know." [...] "People You May Know are people on Facebook that you might know," a Facebook spokesperson said. "We show you people based on mutual friends, work and education information, networks you're part of, contacts you've imported and many other factors." One of those factors is smartphone location. A Facebook spokesperson said though that shared location alone would not result in a friend suggestion, saying that the two parents must have had something else in common, such as overlapping networks.While this feature could be useful in some cases, many may -- and they should -- see it as a big invasion of their privacy -- Hill has succinctly explained a number of them.

Comments

Yup

[nine-times]

I noticed this a few months back. I noticed that I was getting a lot more friend suggestions of people that I didn't know, which was the first thing that made me curious. Facebook had always been suggesting that I friend people when I had mutual friends with that person, but suddenly it was suggesting that I friend people that I didn't recognize, and with whom I shared no mutual friends. So I started paying a bit more attention.

Then I noticed that, among the random strangers, there were a few people that I did know but did not have any mutual Facebook friends and hadn't checked in at the same locations or anything else. That was my first tip-off that Facebook was trying to do something clever to link up friends, so I scanned the suggestions again looking for a possible pattern. Then I noticed that some of the strangers looked familiar. It took me a second to place them, but they were people who lived in the same apartment building or worked in the same office building. In some cases, it was people who lived in a nearby apartment building and got coffee from the same place that I did.

They're definitely using location data to match people up. My only question is whether it's tracking your location all the time, only when the app is open, or only when you post.