More data from South Korea nuclear power operator leaked

A hacker believed to be behind cyber attacks on South Korea’s sole nuclear power plant operator released more files on Thursday, but a company official said the data was not believed to have been newly stolen but from previous hacking. Korea Hydro & Nuclear Power, part of state-run utility Korea Electric Power Corp, said in December its computer systems had been hacked but only non-critical data had been stolen and operations were not at risk

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South Korea steps up cyber security at nuclear plants

By Jack Kim and Meeyoung Cho SEOUL (Reuters) – South Korea boosted cyber security at the country's nuclear power plants on Tuesday following what President Park Geun-hye described as a series “grave” data leaks, and prosecutors said they were investigating a new online threat. Korea Hydro and Nuclear Power Co Ltd (KHNP), which runs South Korea's 23 nuclear power reactors, said on Monday its computer systems had been hacked, raising alarm in a country that is still technically at war with North Korea. …

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