DENIAL-OF-SERVICE ATTACK Definition & Meaning

denial-of-service attack

Often spread by e-mail viruses, these are deliberately planned attacks on a companies or organizations, Web sites , or servers. They aim to shut down access to a site or key server by flooding it with massive requests, placing such great demands on the targeted information infrastructure that no one else can gain access to it. ( See cyberwarfare .)

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Earlier in October, Russian hackers were purportedly behind a denial-of-service attack against Raffensberger's government website, which provides instructions for people on how to vote in Georgia.

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Also, a Ukrainian online bank said it fought off a massive distributed denial-of-service attack on Tuesday.

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The Associated Press news website experienced an outage that appeared to be consistent with a denial-of-service attack, a federal criminal act that involves flooding a site with data in order to overwhelm it and knock it offline.

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"The analysis shows that it is a denial-of-service attack," a parliament spokesperson said.

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Meanwhile, Finland’s parliament said that its website was hit with a so-called denial-of-service attack, which made the site hard to use, with many pages not loading and some functions not available, the Associated Press reported from Helsinki.

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denial-of-service attack

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