It has been reported that Microsoft are collecting and publishing the locations of millions of laptops, mobile phones, and WiFi devices around the world. The huge databases are available through Live.com, with Microsoft seemingly avoiding many of the privacy precautions used by their competitors.
These databases have been assembled using data gathered from Windows Phone 7 devices. They use a process of “managed driving”, where street vehicles record WiFi signals that are accessible from public roads. This is intended to provide “search results, weather, movie times, maps and directions based on a device’s current location.”

However, not everyone is happy with the – lack of – effort Microsoft has taken to protect privacy. Elie Bursztein, a postdoctoral researcher at the Stanford Security Laboratory made the discovery, saying “I think what Google does is the smart thing to do. It’s a pretty good solution”, when comparing the Microsoft system with the limits taken by Google, such as using geolocation to filter requests.
However, according to Reid Kuhn, a program manger with Microsoft’s Windows Phone Engineering Team, there is no problem with the way things currently are. Kuhn said this in a statement to Cnet:
“To provide location-based services, Microsoft collects publicly broadcast cell tower IDs and MAC addresses of Wi-Fi access points via both user devices and managed driving. If a user chooses to use their smartphone or mobile device as a Wi-Fi access point, their MAC address may also be included as a part of our service. However, since mobile devices typically move from one place to another they are not helpful in providing location. Once we determine that a device is not in a fixed location, we remove it from our list of active MAC addresses.”