Cyber Attack Was Done From China's IP Address-- S Korea

The south Korean authorities say that cyber asttack on their banks and broadcasting networks wasa don from China IP address. The authorities say the hacker got the virus entered in the computers using china's IP address, resulting break down of six institutions. Earlier the two cyber attackes during 2009 and 2011 were done by North Korea , says South Korea. However, telecom authories say that the attackers can not be identified by theIP address as they use IP's of other countries to hide their identity. Intelligence experts say that North Korea usually uses the IP addresses of China.