VoIP In Detail covers everything related to VOIP, software, hardware, service providers, reviews, configurations, standards, tips & tricks and everything else related to voice over IP networks, IP telephony and Internet Telephony. Independence Day took on new meaning this year as North Korea allegedly launched cyberattacks against the U.S. and South Korea. Twenty-five Web sites, including those of the Federal Trade Commission, the Secret Service, the Transportation Department, and The Washington Post, were shut down July 4 by a cyberattack allegedly from North Korean hackers, the Associated Press reported.
Access requests formed by malware crippled the Web sites of South Korea’s presidential office, defense ministry, and the National Assembly, the South Korea Communications Commission reported.
The National Intelligence Service in South Korea told South Korean lawmakers Wednesday that North Korea was behind the attacks, according to the AP, citing an aide to one of the lawmakers. NIS, South Korea’s spy agency, said it could not confirm the report but was working with officials in the U.S.
The U.S. Department of Homeland Security has issued a notice to federal agencies on handling such attacks. “We see attacks on federal networks every day, and measures in place have minimized the impact to federal Web sites,” spokesperson Amy Kudwa told Reuters.
Denial of Service
Both U.S. and South Korean Web sites were hit with denial-of-service attacks. DoS attacks often are intended to prevent a Web site or Internet service from functioning properly, temporarily or indefinitely. A DoS attack overwhelms a target with resource requests for bandwidth or server availability.
Typically, attackers have far less bandwidth per machine and need to band together to facilitate DoS attacks, according to Jose Nazario, a security analyst with Arbor Networks. In this case, 12,000 personal computers in South Korea and 8,000 in the U.S. were hijacked to bring down government, financial institutions, and media Web sites.
Politically motivated DoS attacks have increased around the world both by number and severity, according to Nazario. Notable examples include Olympic Web sites taken down by…
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North Korea Blamed for Cyberattacks on U.S., South Korea
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