Facebook shock as users find thousands of spying apps using data | Daily Mail Online Facebook users are waking up to just how much private information they have handed over to third-party apps. Oh it's ok just keep downloading more, because more than this spies on you but hey you have nothing to hide. Oh the world of those who live in lala land. If you only knew how the most innocent thing you say or do can be used against you at any point if your life esp. from here on out.