It has threatened to attack its neighbor with nuclear weapons and has also threatened the United States . Wednesday 's suspected cyberattack hit 32,000 computers . The U.S. Department of Homeland Security said the breach was discovered on Thursday and that it had been contained by Friday. Government computers were n't affected . South Korea has blamed the North in the past , which has rejected the allegations .
Wednesday 's suspected cyberattack hit 32,000 computers . The U.S. Department of Homeland Security said the breach was discovered on Thursday and that it had been contained by Friday. Government computers were n't affected . South Korea has blamed the North in the past , which has rejected the allegations .