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North Korea 'behind cyber attack' on South websites North Korea 'behind cyber attack' on South websites
(35 minutes later)
South Korea believes North Korea was behind cyber attacks against several websites last month, officials say.South Korea believes North Korea was behind cyber attacks against several websites last month, officials say.
The attacks, which took place on the anniversary of the Korean War, hit the presidential office website, and several other official and media sites.The attacks, which took place on the anniversary of the Korean War, hit the presidential office website, and several other official and media sites.
Investigators said an IP address used in the attack matched one used in previous hacking attempts by Pyongyang.Investigators said an IP address used in the attack matched one used in previous hacking attempts by Pyongyang.
The North has also been blamed for cyber attacks on six South Korean banks and broadcasters in March.The North has also been blamed for cyber attacks on six South Korean banks and broadcasters in March.
"The cyber attack seriously undermined the country's image by [altering] the websites of symbolic government organisations, such as the presidential office Cheong Wa Dae," the Ministry of Science, ICT and Future Planning said in a statement.
It added that the method of the attack matched those used in previous attacks by the North, and "the malware used... has been confirmed to be a variation of the malware found in the 20 March cyber attack [by North Korea]".
The hackers attempted to steal personal information from the websites, AP news agency reported, citing investigators.
Almost all the websites and servers affected by the attack had been repaired, science ministry official Park Jae-moon told reporters.
North Korea has not commented on the hacking accusations.
In the past, it has accused both the South and the US of preventing users from being able to visit its official media sites.
On 20 March, cyber attacks on banks and broadcasters in the South affected 32,000 computers and disrupted banking services.
South Korea 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.