A report from Financial Times ( via 9to5Google ) says that a study of 34 of the most popular mobile apps found that at least 20 of them send sensitive user data to Facebook without obtaining the user’s consent beforehand. Such data may include information that users wouldn’t want to divulge, such as whether they have any children, and this is illegal in Europe under the new GDPR privacy act. The list of apps found to share data with Facebook without consent includes Kayak, MyFitnessPal, Skyscanner and TripAdvisor, the report explains. At least 61 per cent of apps tested automatically transfer data to Facebook the moment a user opens the app . This happens whether people have a Facebook account or not, or whether they are logged into Facebook or not. User data is sent to Facebook as soon as the app is opened: The information sent instantly included the name of the application, the unique identification of the user with Google and the number of times the application was open...