The year of the mobile security breach is here Attacks skyrocketed in 2011

The number of mobile security exploits is on track to double year over year between 2010 and 2011. "For years, observers have been wondering when malware would become a real problem for the latest generation of mobile devices," said Tom Cross, a manager at IBM's X-Force security research arm.

Source:
http://venturebeat.com/2011/09/29/mobile-security-exploits/