Computer ‘worm’ removed at South Korea nuclear operator
Seoul – South Korean authorities have found evidence that a low-risk computer “worm” had been removed from devices connected to some nuclear plant control systems, but no harmful virus was found in reactor controls threatened by a hacker.
Korea Hydro & Nuclear Power said it would beef up cyber security by hiring more IT security experts and forming an oversight committee, as it came in for fresh criticism from lawmakers following recent hacks against its headquarters.
The nuclear operator, part of state-run utility Korea Electric Power, said earlier this month that non-critical data had been stolen from its systems, while a hacker threatened in Twitter messages to close three reactors.
The control systems of the two complexes housing those reactors had not been exposed to any malignant virus, Seoul’s energy ministry and nuclear watchdog said in a joint statement on Tuesday, adding the systems were inaccessible from external networks.
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