There is a chance that you have a friend on Facebook who has fallen for some copyright mumbo jumbo post, its only a hoax.
This is an old hoax which has recently resurfaced and users are telling others via their own post to copy paste it as their profiles, pictures etc. etc. are at risk for being copied. This is not true. Your interactions are governed by the laws and licenses but surely not your wishes.
The message that I do read on a friend’s post stated that
In response to the new Facebook guidelines I hereby declare that my copyright is attached to all of my personal details, illustrations, comics, paintings, professional photos and videos, etc. (as a result of the Berne Convention). For commercial use of the above my written consent is needed at all times!
(Anyone reading this can copy this text and paste it on their Facebook Wall. This will place them under protection of copyright laws. By the present communiqué, I notify Facebook that it is strictly forbidden to disclose, copy, distribute, disseminate, or take any other action against me on the basis of this profile and/or its contents. The aforementioned prohibited actions also apply to employees, students, agents and/or any staff under Facebook’s direction or control. The content of this profile is private and confidential information. The violation of my privacy is punished by law (UCC 1 1-308-308 1-103 and the Rome Statute).
Facebook is now an open capital entity. All members are recommended to publish a notice like this, or if you prefer, you may copy and paste this version. If you do not publish a statement at least once, you will be tacitly allowing the use of elements such as your photos as well as the information contained in your profile status updates…
Again, this is not true, its just a hoax. Do not such a thing unless you have nothing to post and think freaking other people out is a good idea.
Just keep one thing in mind, nothing can change the fact that when you signed a contract with Facebook at the time of signup to use its service. do what they want with your data subject to applicable laws. As for your copyrights, they belong to you not Facebook — but you give the company a license to use them and it’s the same with any other service you use like Twitter, Apple, Google, Pinterest etc.
Here is the official post by Facebook that they have posted on their newsroom in response to circulating message:
Copyright Meme Spreading on Facebook
There is a rumor circulating that Facebook is making a change related to ownership of users’ information or the content they post to the site. This is false. Anyone who uses Facebook owns and controls the content and information they post, as stated in our terms. They control how that content and information is shared. That is our policy, and it always has been.