South Korea's nuclear power plant operator is conducting a two-day drill to test its resilience to digital attacks, following a series of posts on Twitter from a hacker claiming to have compromised power station computer networks.
Korea Hydro and Nuclear Power (KHNP), which runs 23 reactors and supplies around a third of the country's electricity, kicked off the drill on Monday morning. The hacker posted designs and manuals for two reactors, along with personal information about 10,000 KHNP workers, online via Twitter late last week.
Then, on Sunday, the hacker threatened to release further information unless three reactors were shut down from 25th December. The government says it is handling the incident with "extreme care", though it hasn't yet managed to identify the culprit.
The news follows threats made by North Korea, claiming that it will strike the White House and "the whole US mainland, that cesspool of terrorism". It's unclear if there's any link to between this South Korea hack and events unfolding between the US and North Korea. [AFP (on the Guardian)]
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