South Korea has issued a cyber alert after an apparent hacking attack on government websites.
The website of the presidential office was one of several
official and media sites hit by an apparently co-ordinated attack on
Tuesday morning, reports said. The identity of the hackers was not known, a government statement said.
The
incident came on the anniversary of the start of the 1950-53 Korean
War, which divided the Korean peninsula. "The government can confirm a
cyber attack by unidentified
hackers that shut down several sites including the Blue House," the
Science Ministry said in a statement, referring to the presidential
office. The website for the office for Government Policy
Co-ordination and some media servers were also said to be affected by
the attack.
'Anonymous messages'
Messages praising North Korean leader Kim Jong-un and claiming
that hacking collective Anonymous was responsible were left on the
hacked websites. However, Anonymous denied any involvement in the South Korean
cyber-attacks on its official Twitter account, AFP news agency
reported.
Instead, the "hacktivist" group was said to have planned attacks against North Korean websites.
A number of North Korean websites went offline on Tuesday
morning and appeared to have been targeted by hackers on Tuesday, South
Korea's Yonhap news agency reported, citing unnamed sources.
These included the websites of North Korea's Korean Central News Agency, newspaper Rodong Sinmun, and portal Naenara.
Anonymous has previously claimed to have hacked and
vandalised social networking profiles linked to North Korea as part of
its Operation Free Korea. South Korea has raised its cyber-alert level, and asked
citizens to review their internet security, the BBC's Lucy Williamson in
Seoul reports.
South Korean investigators say North Korea has frequently carried out cyber attacks in the South, our correspondent adds.
On
20 March, cyber attacks on six South Korean banks and broadcasters
affected 32,000 computers and disrupted banking services. South Korea
has blamed that incident - which came at a time
of heightened tensions between the two Koreas following Pyongyang's
nuclear test on 12 February - on North Korea. North Korea has also been
blamed for previous cyber attacks in 2009 and 2011.
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