You may have noticed over the last few days that people have been posting a "privacy notice" on their Facebook pages. Basically saying that whatever they post is not to be used by Facebook. There's only one problem - legally, it does nothing.

These seem to pop up every couple of months; you'll see a friend post a notice in impressive legalese, enforcing all rights to what they post on Facebook. It seems impressive, looks like a good idea, so you copy and paste on to your own Facebook wall.

The problem is, when you first signed up for Facebook, you already agreed to their rules, you can't retroactively change the rules that you already agreed to.

So again, posting a "privacy notice" on your Facebook wall does nothing, so don't bother. The best rule to go by online - if you don't want other people to see it (and possibly steal it), don't put it online!

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