Early-bird Net users frustrated again

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Early-bird Net users frustrated again

Another disruption in broadband Internet access occurred early yesterday morning at KT Corp., the largest high-speed Internet carrier in Korea. The company has yet to find the cause of the trouble. At around 5:40 a.m. yesterday, 11 out of KT's 48 nationwide "nodes," or regional centers that connect broadband users to central networks, broke down under the load of Internet traffic and were jammed for about four hours, KT said. Domain name servers, which were the main target of the nationwide Internet shutdown on Jan. 25, were not involved. Over 400,000 subscribers connected to the 11 centers were affected; the sites affected were scattered throughout the nation from Seoul south through Jeju. KT has about 5 million subscribers nationwide. Industry sources said they suspected either malicious programs or mechanical problems as the cause of shutdown, but KT said that it was still investigating the cause. "We do not really think a Trojan Horse program was the cause of the disruption," said Lee Gil-ju, a KT employee. A Trojan horse is a program in which malicious or harmful code is contained inside apparently harmless programming or data. Flaws in switches that buffer subscribers' connections to the central network could also have been the cause of the problem, he said. The Ministry of Information and Communication separately issued a warning against a new Trojan horse that could affect the Internet. The malicious program has the unwieldy name of Win-trojan/MircPack.597504. by Kim Hyo-jin
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