If you’ve been on Facebook recently, you might well have seen a status update warning users that their entire Facebook history will become public unless they copy and paste the message onto their own page.

Here is Facebooks response to it:

FACEBOOK ANNOUNCEMENT

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.

You can visit Privacy Basics to find out more about who sees what you share on Facebook and other topics.

You can also read the Data Policy to find out what information we collect and how it is used and shared. We want you to be informed and in control of your experience on Facebook.

https://www.facebook.com/fbfacts/1573108242983244