Wall Street Journal: Eleven health and fitness apps shared sensitive data with Facebook with Facebook. This occurred whether or not a user had a Facebook account. The data was sent because the apps used Facebook’s mobile analytics SDK, which collects information that helps for better ad targeting. The only accurate way to figure out what data an app is transmitting is to man-in-the-middle the traffic with a web proxy and scan data fields. Europe’s General Data Protection Regulation represents the biggest driver to shine a light on data sharing, mandating plain language.”]
Source: https://www.cuinfosecurity.com/blogs/gap-between-mobile-apps-privacy-p-2725