Revealed: The secret 'other' folder in your Facebook account that could be full of important messages you haven't seen

The inbox feature was set up to protect social network users from spam, but could harbour important message and invitations, American tech expert David Pogue has warned. 

MORE:  http://www.dailymail.co.uk/sciencetech/article-2370461/The-secret-folder-Facebook-account-important-messages-havent-seen.html