“South Korea’s nuclear plant operator has said its computer systems have been breached, raising fears that hackers, including those with possible North Korean links, could shift their focus to key infrastructure.
The violation prompted a safety drill on Monday at nuclear plants around the country. The precautionary exercise comes days after the US blamed Pyongyang for hacking Sony Pictures, which led the company to cancel the release of a Hollywood satire about the fictional assassination of the secretive state’s leader, Kim Jong-un.”
Source: South Korean nuclear operator hacked amid cyber-attack fears | World news | The Guardian