Be careful while agreeing to new terms and conditions on WhatsApp...... messaging app's new terms of service. Rather than clicking "agree" blindly, press the smaller "read more" option below, and uncheck the box that reads "Share my WhatsApp account information with Facebook..."
Don't worry if you've already accepted those new terms, however — you've still got 30 days to opt out. Head to the app's settings menu, and then press the account tab. From there, you can uncheck the box reading "Share my account info" to stop providing Facebook with your user data. Watch this video below and share it with your loved ones before this 30 days window pass off.