Fri, Mar 13, 2015 - Page 6 News List

More data from S Korean nuclear power firm leaked

CYBERATTACK:A Korea Hydro and Nuclear Power official said the files were from a previous hacking and did not compromise the company’s operations

Reuters, SEOUL

A hacker believed to be behind cyberattacks on South Korea’s sole nuclear power plant operator released more files yesterday, but a company official said the data was not believed to have been newly stolen but from previous hacking.

Korea Hydro and Nuclear Power, part of state-run utility Korea Electric Power Corp, said in December last year its computer systems had been hacked, but only non-critical data had been stolen and operations were not at risk.

The hacker had at that time demanded the shutdown of three reactors threatening, in Twitter messages, “destruction” if not.

More files were posted on Twitter yesterday with a demand for money and an e-mail address where the hacker said he could be contacted, claiming there have been offers from other countries to buy data related to nuclear power plants.

“We don’t know how they were leaked, but one thing for sure is that there has been no attack from anti-nuclear groups since December,” an official at Korea Hydro and Nuclear Power said, referring to the newly posted files.

The company official declined to be identified.

The hacker repeated a claim to be head of an anti-nuclear power group.

The operator, which runs the country’s 23 nuclear power reactors, said in a statement the files included a blueprint and test data for one of the reactors. All of the documents were unclassified, as was the material leaked in December, it said.

The latest leaked data included material likely collected from external sources and the safety of the company’s nuclear operations had not been compromised, the company said.

Reuters has not independently verified the content of the files said to be in a Dropbox account.

Police and prosecution officials investigating the leaks declined to comment.

The nuclear operator said after its systems were hacked in December that security measures against cyberattacks were increased.

Investigators said at the time they did not rule out involvement of North Korea in the cyberattack. The North’s state media dismissed that as “fabrication.”

The December hacking attacks came after the US accused North Korea of a serious cyberattack on Sony Pictures and vowed to respond proportionately.

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