South Korean investigators have released a report showing that the massive cyber-attacks on television stations and banks was the work of North Korea.
Investigators said they discovered pieces of the code that were an identical match to code in malware previously connected to North Korean spies. In addition to the malware, 22 of the IP addresses were identified as being used by North Korea in previous attacks.
The allegation increases the tension between the two countries as North Korea continues to threaten to fire missiles into South Korea.
The malware attack on March 20th struck over 48,000 PCs and servers. Three banks had to completely stop all operations and three TV stations had to run on emergency equipment until the viruses could be removed from broadcast systems.
Commentators in South Korea are taking the government to task saying that systems are outdated and unable to be secured.