Now facebook store the messages and call.

Facebook dropped a bomb on Monday. It confirmed that its Facebook and Messenger apps collect details on the calls a user makes and SMS that are sent through a phone. Although, the company says that it does so after seeking explicit confirmation for it from users. Permission or no permission, it is important to understand for users what this means: It means when allowed, Facebook collects details of every call you make and every SMS you send and then sends these details to Facebook servers where they are stored.