Whenever a new smartphone is bought, Facebook and Whatsapp are probably the first two mobile apps that buyers search for in the app store. For convenience, users also tend to install a host of third-party applications without going through their permission policies.A closer look at the permission policy of one of the most commonly used apps like Facebook reveals terrifying details. The app requires you to let it access literally all your data and information stored in the handset. Moreover, it also seeks to access the device camera and make calls, without informing you every time it does access these features. While Facebook is a proprietary app, the rule remains the same for many third-party apps, the origin and ownership of which is not known.