A recent International Privacy Study revealed that 42.55% of the free Google Play apps can share Facebook data, and many popular apps share Facebook data, the second one is open.
According to the study, 61% of the applications the group tested automatically uploaded data on Facebook at the moment the user opened the application, regardless of whether the person has or has not had a Facebook profile or if they are logged into that account on the device.
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Some of these applications send detailed information on a social network that can be considered sensitive. For example, Kayak sends Facebook information to search for flights of people, including their departure city, date and airport, as well as where they plan to go, how long they would like to stay and how many people they travel with. It also shares information about the type of ticket that someone is looking for.
Other popular applications that the study has determined send information to Facebook are MyFitnessPal, Duolingo, Skyscanner, TripAdvisor, Spotify, Yelp, Shazam and Truly.
Facebook reportedly corrected this issue through a new version of its programming kit, but these applications have yet to be implemented, or at least not implemented correctly, Engadget reports.
The problem does not seem to affect iOS versions of applications.
You can check the full report here for free. Detailed reports are also created for all applications that transmit data to Facebook immediately when the application is open.
If you use one of them, it's worth knowing which information you are sharing when doing.