Although Apple’s own Game Center once threatened to topple it from its perch as iOS’s most popular gaming social network, OpenFeint is still going strong, largely thanks to an open, cross-platform approach that allows iOS and Android devices to play with one another on equal social footing.
But that’s not to say that OpenFeint hasn’t had its missteps. Last month, a security researcher discovered that OpenFeint commonly linked iOS devices’ unique device identifiers (or UDIDs) to the phone owner’s Facebook profile. The result? A list of names for 75 million registered OpenFeint users, linked to their iOS devices and Facebook accounts.
OpenFeint has since closed the security hole in their system, but as security researcher Aldo Cortesi tells Wired, if a network as big as OpenFeint managed to link UDIDs with specific user accounts across games as popular as TinyWings, Pocket God, Robot Unicorn Attack and Fruit Ninja, there are probably a lot more apps out there flying under the App Store Approval Team’s radar. And those app developers could, even now, be selling your information to advertisers.