You have two methods to do this. When you launch WhatsApp today, you’ll see an updated Terms of Service. At the bottom of the screen, there’s a checkbox. Uncheck the box, then tap Agree, and your data will not be shared.
If you already blindly went through and didn’t pay attention to that box, don’t worry, you can still opt out:
- Launch WhatsApp and tap Settings.
- Tap Account.
- Uncheck the box marked “Share my account info.”
Content from lifehacker.com