SEOUL, July 7 (Xinhua) -- Official websites of South Korean government agencies, including the presidential office and the foreign ministry, came under hacker attacks Wednesday, a national telecom regulator said.
According to the state-run Korean Communications Commission ( KCC), the websites of government agencies, such as the presidential office Cheong Wa Dae, the Ministry of Foreign Affairs and Trade, and private firms, including the leading Internet search engine Naver, Nonghyup Bank and the Korean Exchange Bank, were hit by the so-called distributed denial-of-service (DDoS) attacks from around local time 6:00 p.m. (0900 GMT) Wednesday.
Emergency countermeasures have been adopted and no specific damages have been reported so far, the KCC said.
The attacks came just one year after a large-scale DDoS attack shut down 25 internet sites for days.
The KCC said the attacks are "at a very low level" compared with what occurred last year, and posed no major threat, while the government agencies have fully prepared to cope with any contingency. The commission is currently analyzing the origin of the attacks, it added.
Meanwhile, the KCC did not rule out the possibility that Wednesday's attacks were triggered by virus that has not been completely removed from the computers exposed to attacks last year.