A researcher at the University of California at San Diego has documented that denial-of-service attacks are commonplace on the Internet, with an average of 4,000 occurring each week during a recent three-week study.. . .
A researcher at the University of California at San Diego has documented that denial-of-service attacks are commonplace on the Internet, with an average of 4,000 occurring each week during a recent three-week study.

As if to underscore the point, one of the most prominent security sites in the US, the Computer Emergency Response Team Coordination Centre at Carnegie Mellon University, was brought down by a denial-of-service attack last week. The CERT center, ironically, is the primary source for Internet security threat warnings.

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