SK nuclear plant attacker used IP addresses ‘based in China’
Print Edition
A SUSPECT in the hacking attack on South Korean nuclear reactors used multiple Internet protocol (IP) addresses based in China, investigators said yesterday.
South Korea’s Ministry of National Defense’s cyber warfare unit has increased its watch level against attacks after the publication last week of a variety of information about South Korea’s nuclear power plant operator on Twitter.
It included designs and manuals for two reactors, as well as personal data about 10,000 workers at Korea Hydro and Nuclear Power.
The suspected hacker worked from Shenyang, capital of northeast China’s Liaoning Province, according to a team of government and prosecution officials quoted by Yonhap news agency.
An IP address, however, is not always a reliable guide to the nationality or geographical location of an Internet user.
The suspect has styled himself president of an anti-nuclear power activist group.
On Tuesday, the person posted more information on Twitter, including four files of reactor-related information and what seemed to be blueprints of facilities, among other material.
The KHNP said the material released on the Gori and Wolsong nuclear power plants was not classified.
The investigation team said it has asked the FBI to look into the servers of United States-based Twitter, Yonhap reported.
The information released so far appeared to be from the power plants’ operating system, which until April 2013 had been connected to the Internet, Yonhap reported.
The hacking incident came at a time of heightened concern about cyber crime after a crippling attack against Sony Pictures, which both Seoul and Washington have blamed on North Korea.
There has been no indication that Pyongyang was behind the release of the nuclear material.
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