Some of the malicious software used in the cyberattack that recently
shut down tens of thousands of computers across South Korea originated
in the United States and three European countries, the Washington Times
reports, citing authorities in Seoul.
The cyberattack last week crippled six South Korean banks and media companies.
"We traced some IP (Internet protocol) addresses found on (affected)
computer networks to overseas sources like the U.S. and a few European
countries," an official from the Korean Communications Commission
purportedly said Monday.
Many first suspected North Korea was responsible for the attack, but
South Korean officials have yet to assign blame and say they have no
proof yet of North Korea's involvement.
South Korea has set up a team of computer security experts from the
government, military and private sector to identify the hackers and is
preparing to deal with more possible attacks, presidential spokesman
Yoon Chang-jung told reporters Friday. He didn't elaborate on the
possibility of more attacks, but he said the prime minister later would
hold a meeting to discuss ways to beef up cybersecurity at institutions
overseeing infrastructure such as roads and electricity.
The cyberattack did not affect South Korea's government, military or
infrastructure, and there were no initial reports that customers' bank
records were compromised. But it disabled cash machines and disrupted
commerce in this tech-savvy, Internet-dependent country, renewing
questions about South Korea's Internet security and vulnerability to
The attack disabled some 32,000 computers at broadcasters YTN, MBC
and KBS, as well as three banks. The broadcasters said their programming
was never affected.
All three of the banks that were hit were back online and operating
regularly Friday. It could be next week before the media companies have
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