Hackers have posted on the internet MediaDefender Inc emails sent between the company employees.  The emails contain information on how they conduct business, by trapping unsuspecting video posters and then providing that info to media companies so that appropriate action can be taken against them.  Some emails also contained passwords on how to log onto their website for administering it.
My rant…..what will it take organizations to understand importance of encryption.  First all information generated within the organization must be classified and then based on  the classification appropriate steps taken to protect it, one of them email encryption.