Whatsapp have introduced a new feature where all your activities on Whatsapp are shared on your Facebook wall. ( Remember Facebook Owns Whatsapp).

This new feature allows your chats on Whatsapp to be displayed on your Facebook

Most times it may breach your privacy because most of your chats on Whatsapp even on Facebook are private and confidential, hence you will not like them to be shared to your Facebook wall but the good news is that you can turn it off.

To Turn Off

1. Open your Whatsapp.
2. Click on Settings
3. Click on Account
4. You will see ‘Share My Account’.
5. Uncheck “Share My Account” and non of your chats from Whatsapp will be shared to your Facebook Wall except you want your whatsapp activities to be shared on Facebook.

SOURCE: http://fastesttech.com/how-to-stop-the-new-whatsapp-features-that-posts-your-whatsapp-chat-on-your-facebook-wall/