 S. Korea accuses N. Korea over communications attack Seoul (AFP) March 9, 2011 - North Korea is thought to have beamed signals from two locations to try to jam military communications in South Korea but the attempt failed, Seoul's defence minister said Wednesday. The jamming, which began last Friday, coincided with major US and South Korean war games south of the border and with cyber attacks on key government websites. Defence Minister Kim Kwan-Jin told a parliamentary session that signals had been emitted from the western border city of Kaesong and also apparently from Mount Kumgang on the east coast. "Besides Kaesong, Mount Kumgang is believed to be a site where jamming signals originated," a participant quoted Kim as telling the closed-door session. It was the first time Mount Kumgang had been mentioned as a potential origin of the electronic attacks to disrupt navigational devices using Global Positioning Systems. Kim said the attempt was ineffective because most military devices use a military-only satellite navigation system. "To cope with a future disruption of GPS signals, the ministry will step up a cooperation system among private, government and military sectors," the minister said, according to the participant quoted by Yonhap news agency. Kim's predecessor said last October that the North was capable of interfering with GPS reception over a distance of up to 100 kilometres (60 miles). He said this could potentially disrupt guided weapons such as missiles. The electronic attack coincided with DDoS (distributed denial-of-service) attacks last week on the websites of 30 government agencies and financial institutions in the South. A DDoS attack often uses viruses planted in "zombie" computers. These seek simultaneous access to selected sites and swamp them with traffic. Choi See-Joong, head of the Korea Communications Commission, told parliament late Tuesday that North Korea was believed to have launched the latest DDoS attacks. "We presume it was North Korea," he said. "We believe so based on the fact that the attack coincided with security exercises and on other signs." His office said viruses had destroyed the hard discs of 522 computers. In July 2009 a cyber-attack temporarily shut down 25 sites domestically and in the United States. The South's spy agency blamed the North for that incident, although US officials reached no conclusion. |
In recent weeks, state media has shown comments from Cubans contacted by alleged US agents who, according to reports here, were seeking to set up communications networks to promote subversive activities.
The reports came as a verdict was awaited in the trial for US national Alan Gross, 61, accused of crimes against the Cuban state.
Cuban media began airing in February a report, presented as a "leak" from the interior ministry, where a computer security expert described US efforts to subvert the Havana regime.
The expert identified Gross as part of an effort to create a technological platform that could be used to establish "a network of virtual mercenaries" who could use the Internet to attack the government.
Cuban authorities say the efforts by Gross -- who according to US officials was providing computers and cell phones to Cuba's Jewish community to help it communicate with the outside world -- was part of a new strategy by Washington to foment subversion.
On Monday, state-run television showed a report from a so-called "agent Raul," whose real name is Dalexi Gonzalez, who said he was contacted in March 2008 by US agents seeking to set up a satellite communications network accessible to Cubans.
Gonzalez said he was contacted by Robert Guerra of Freedom House, a US pro-democracy group that Havana claims is linked to the CIA and the State Department's Agency for International Development.
Daniel Calingaert, who oversees Freedom House's civil society and media programs, said Guerra "did in fact travel to Cuba as part of a Freedom House program" but was an outside expert for the organization at the time.
Calingaert said the program's goal is "to help Cubans get access to the Internet and generally promote the free flow of information."
"Obviously in any other context this would be perfectly normal. But Cubans get into trouble for doing this kind of thing," he told AFP, without addressing the allegations of links to the US government.
Cuban media have also showed other reports suggesting Washington is financing Cuban dissident groups.
US officials have called for the release of Gross, and said the case has hurt efforts to normalize relations between Washington and Havana.
Cuban prosecutors are seeking 20 years in prison for Gross, who was working under contract with the State Department as a contractor when he was arrested in late 2009.
He was charged with "acts against the independence and territorial integrity of the state."
A Havana court declared his trial "closed" after two days on Saturday and said Gross was ready for "sentencing," adding that its "verdict will be made public in coming days," according to an official statement read on Cuban television.
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