You may have seen some of your Facebook friends started posting a Facebook "Privacy Notice" clarifying that they no longer give Facebook permission to use their photos, personal information, just like this one.
Maybe you'll see that on your facebook but ignore it and stop sharing that joke privacy update!
Facebook has made no such announcement; rather it has been made by people who are spreading this all over the social network:
"You may have seen a post telling you to copy and paste a notice to retain control over things you share on Facebook. Don't believe it. Our terms say clearly: You own all of the content and information you post on Facebook, and you can control how it's shared through your privacy and application settings. That's how it works, and this hasn't changed."
As you read this real information, share this to your friends inform them.