Don't copy and paste.
You can breathe a sigh of relief. A fake Facebook message claiming to protect users' media is making the rounds and has probably already popped up in your news feed. The message claims to put copyright protections on a user's posts after they share the status update. There are several variations of the message but it typically reads something like this:
Don't freak and hurry and copy and paste the thing. You're fine. Why? Facebook doesn't own your posts. In the site's guidelines, Facebook makes it clear in its Statement of of Rights and Responsibilities: "You own all of the content and information you post on Facebook, and you can control how it is shared through your privacy and application settings.
The message is junk, recycled junk for that matter. A similar Facebook hoax happened in 2012 asking users to copy and paste the message or they would be at risk of privacy violations.
So, don't worry. But, you may want to take this opportunity to double check the privacy settings for your account by clicking on the lock icon in the upper-right corner of your profile.
Sources:
http://abcnews.go.com/Technology/facebook-copyright-hoax-viral/story?id=28002971
http://www.cbsnews.com/news/facebook-privacy-hoax-making-the-rounds-again/