WhatsApp will begin sharing its users’ data with its parent company, Facebook. The messaging service will also begin pushing users to share some of their account details, including phone numbers, with Facebook, allowing the social network to suggest phone contacts as friends. WhatsApp is offering a partial opt-out for Facebook targeted ads and product related purposes, but completely opting out of the data-sharing does not seem to be possible. The company notes that data will still be shared “for other purposes such as improving infrastructure and delivery systems”
Source: https://thehackernews.com/2016/08/facebook-whatsapp.html