From FB official statement: "When you sign up for Messenger or Facebook Lite on Android, or log into Messenger on an Android device, you are given the option to

From FB official statement: "When you sign up for Messenger or Facebook Lite on Android, or log into Messenger on an Android device, you are given the option to continuously upload your contacts as well as your call and text history." Why FB needs users call and text history in first place? These privacy options are enabled by default when you install Massenger app and majority of the people are not aware of these privacy settings on their phones. And even if you alter a privacy setting on you phone then upon next update of the Massenger application it gets reset to defaults! And we all know the high frequency of app updates. It is like all of these are part of a bigger systemic issue and it smells foul play.