The National Security Agency and Britain’s Government Communications Headquarters have been working together to collect user information through “leaky” mobile apps, according to secret documents released by Edward Snowden. Google Maps, Facebook, Flickr, LinkedIn, and Twitter are all used as examples of apps said to scoop up personal information in a recent New York Times report. Information obtained from these apps may include address books, buddy lists, phone logs, and geographic data. The report notes that the “scale and specifics of the data haul are not clear.”

Though Angry Birds is used as example of a newer app the agencies could use to acquire information, it is not made “explicit whether the spies have put that into practice.” The NSA and the British Agency are reportedly mining information that has been acquired by ad firms, with data depending on which ad service compiles the user data profiles. In addition to the Times report, The Guardian and ProPublica have their own reports on the documents.