How to Change Your WhatsApp Settings Before Facebook Data Sharing Begins
UPDATE (9/12/16): We have clarified that users have 30 days after they first see WhatsApp's privacy policy update to agree or not agree to its terms. We have also clarified that, while the new privacy policy permits WhatsApp to share contact lists with Facebook, no concrete plans to do so have been...
31 Aug 2016 ... Once you uncheck the box, you will see this pop-up box confirming that your account information won't be used on Facebook.