Now, that Facebook has explained how it collects this data with Messenger and Facebook Lite, it also tells people what they can do if they don’t want this data collected.
The first thing to avoid giving Facebook your call and SMS details is to deny the Facebook apps access to your contacts when you are installing these apps. The second way is to turn off the permission from Facebook settings. To do this:
On Facebook Messenger: Go to settings > People > Turn off Contact Sync. To delete previously uploaded contacts, go to this page, log into your account and delete contacts.
On Facebook Lite: Go to Settings > Turn off Continuous Contacts Upload. Also turn off Sync Your Call and Text History.
