Your Facebook inbox might seem like a private place compared to your news feed and wall, but as with most things on the internet, nothing is ever truly secluded. Security researcher Inti De Ceukelaire this week penned a Medium blog detailing how he was able to see private links shared between users using the Facebook’s crawler tool. The crawler is used to obtain details about a URL to display them the way you normally see links on Facebook: with a title, description, and thumbnail image. Though De Ceukelaire’s testings, he was able to obtain an object number Facebook assigns a link every time it’s…

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