The Internet has dissolved the geographical boundaries and technological limitations that have constrained organized cybercrime in the past. We now live with cybercrime syndicates based in the US, Russia, Asia and all over the globe. When hackers in the US are sleeping, the ones in China are flexing their fingers on their keyboards, and the ones in Eastern Europe are waking up. Cybercrime never stops.
http://robertsiciliano.com/blog/2013/04/28/what-should-i-know-about-mobile-cybercrime/