It was sparked, the Korea Times says, when some 2CH users began offering praise to Russians for the recent killing of a South Korean student (an incident you can read about at Brian's here and here):
The attacks were triggered by comments praising Russians for the killing of a Korean student in Moscow.If I'm right about which South Korean student was killed (and I pray there has been only one), then the murder occurred in Barnaul, near Siberian Russia’s border with Kazakhstan, thousands of miles from Moscow.
Some postings claimed that the killing was not racially motivated and Russians were doing "good deeds" after the event occurred.
2ch saw postings claiming that Kim Yu-na won the gold medal in the Vancouver Olympics thanks to judges bribed by Korea. Such anti-Yu-na comments increased when Japan's Mao Asada lost to Kim and had to settle for a silver medal.
I have heard a great deal about the anti-Yuna hate fest that grew among some Japanese, but that in no way would justify anything like this. Indeed, even the hate-mongering and — dare I say — violence-inciting words from 2CH do not warrant this kind of illegal activity (hacking, that is). At the same time, though, I'd hate to see the ROK authorities go after the South Koreans responsible when those at 2CH who posted what may be illegal hate speech go unpunished. Maybe Lee and Hatoyama need to do a sit-down or at least a call-through on this one. [HT to Wangkon via email]