The nuclear reactor hacker who last Christmas threatened to shut down some of Korea's nuclear power plants... is back.
And this time he or she is demanding money for not handing over sensitive data to third countries.
Connie Kim has the details.
The hacker that threatened to shut down Korea's nuclear facilities last year has come back with a fresh threat.
Using the same twitter account, the hacker demanded money and warned that countries from Northern Europe, Southeast Asia and South America want to buy Korea's nuclear reactor information.
There was no specified amount for the payout but the message did say nuclear authorities should send an email to the stated address if it's willing to take the offer.
Along with the threat,... more than 20 files were released including floor maps and transcript of a phone conversation between President Park Geun-hye and United Nations Secretary General Ban Ki-moon.
An official from the state-run Korea Hydro and Nuclear Power Company said it's looking into how the information got leaked and how sensitive the released documents are.
The threat comes about three months after the hacker threatened to destroy power plants if the company didn't halt operations at three of Korea's nuclear facilities by Christmas last year.
No destruction was done to the reactors even after the shut-down deadline, and the nuclear power company had insisted the released data posed no threat.
However, the hacker's comeback is raising concerns as the person behind the nuclear power hack still hasn't been identified, even after months of investigation
Connie Kim, Arirang News.