Some users, mostly in France, reported that “private messages” sent between 2007-2009 were suddenly public. However, Facebook told the BBC: “[The] messages were older wall posts that had always been visible on the users’ profile pages. Separately, Facebook shares fell up to 11% after an influential journal said the stock is worth just $15. On the messaging rumour, the social network said: “Facebook is satisfied that there has been no breach of user privacy.” Another source at the company told the BBC that engineers said there was “no way” the two areas of data could get mixed up. Read the full story at the BBC.