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Facebook Uses Your Location Data to Suggest New Friends. Does That Seem Weird To You?

Have you ever bothered to open up your "Location Services" settings on Facebook? If you haven't been paying attention to it, then it's probably still turned on. And it's probably affecting the friend suggestions that Facebook has been making for you.

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Google to Add Opt-Out for Wi-Fi Location Database

Google is planning to allow users worldwide to opt-out from their Wi-Fi hotspot location database later this fall. The announcement, made on the search giant's European public policy blog, is surely a response to legal troubles the company has encountered after it was revealed that the process of mapping these hotspots also captured information about individual Wi-Fi devices like computers and smartphones. Google has also run into legal trouble when the company admitted in 2010 that it had inadvertently intercepted fragments of data being sent over the networks it was mapping. The information in this database allows Google to estimate the geographic position of a user based on the known positions of Wi-Fi hotspots. Early iterations of the iPhone determined location in the exact same manner, using a database from SkyHook. To create their own database, Google's streetview cars were equipped with Wi-Fi sniffing sensors that mapped the location of every wireless device they came across, as well as some they didn't intend.

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Microsoft Joins the Party, May Have Published Location Information

Microsoft has apparently been gathering location information for wireless devices and publishing it through their API. The API data contains the location of cell towers and Wi-Fi hotspots which can be used in locating a mobile device nearby -- similar to how early iPhones operated. However, CNet reports that buried amongst the benign information are the MAC addresses of other wireless-enabled devices, which could include phones, computers, and more. To build their database, Microsoft has been drawing on information "crowdsourced" from Windows 7 Phones and by special vehicles with Wi-Fi sniffing antennas. Does this sound familiar? It should. Cast your mind back a few months to a time when the world looked scornfully at Apple for "crowdsourcing" the location of Wi-Fi hotspots and cell towers across the country through the iPhone. And just a few short days ago, Google faced similar allegations; that they're Street View cars were also used to gather wireless access point information and may have posted user's MAC address online. If you throw the two of those together, you more or less get what Microsoft has been up to. Responding to CNet's report, Microsoft says that it only publishes the location information of Wi-Fi devices it knows to be stationary. Presumably, this is done by comparing the data taken over different days. However, it seems that some wireless devices could have slipped through this filter.

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Google May Have Gathered Personal Location Data With Street View Cars

CNet is reporting that while attempting to make a complete list of Wi-Fi access points, Google has also recorded (and in some cases, released) a glut of personal location information with their Street View mapping cars. This comes after previous reports supporting the claim, and a hefty 100,000 euro ($143,000) fine from the French Commission Nationale de l'Informatique et des Libertés (CNIL) for gathering unique identifiers for Wi-Fi-enabled hardware. Google's stated goal was, in addition to mapping the roads of the world, to provide a complete list of Wi-Fi access points. This data could be used for a variety of purposes, from helping weary travelers find easy-to-use Internet connections to aiding completely lost travelers with psuedo-GPS. In an interesting twist, this was the same goal Apple purported to during their own user location data scandal. The difference is that Google seems to have recorded unique identifiers of computers, phones, and other Wi-Fi enabled devices along with Wi-Fi hotspots. Before you bust out the torches, pitchforks, wetsuits, and tridents and march off to Mountain View, CA., let's put this in perspective.

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