MaraudersMap
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Facebook axed internship for student who exposed location flaw
If you're about to start an internship at one of the world's biggest social networks, it might not be in your interest to publicly embarrass it shortly before you begin. It's a lesson that Harvard student Aran Khanna learned the hard way after creating an app that took advantage of a privacy flaw within Facebook Messenger. Khanna had found that, whenever you chat to your friends, the system automatically shares your location. As such, he built a browser plugin, called the "Marauder's Map," that showed you where your buddies were as they were talking to you.
Creepy Chrome extension shows where FB messages come from
Even though Facebook's mobile Messenger specifically tells you that it tracks your location data the first time you install the app (and every time you start a new conversation), most folks don't realize how often and how accurately it actually does so. In fact, the app pings your location each time you send a text. And with this new Chrome extension, you'll be able to see exactly where your contacts have been messaging you from -- without their knowledge or consent.
