South Korea blames North Korea for shutdown

Computer networks at two major South Korean banks and three top TV broadcasters went into mass shutdown today, paralysing bank machines across the country and prompting speculation of a cyber attack by North Korea.
Screens went blank at 2pm local time (5am Irish Time), with skulls popping up on the screens of some computers – a strong indication that hackers had planted a malicious code in South Korean systems, the state-run Korea Information Security Agency said.