Importance

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Abstract

An abnormal behavior detection system includes a context information reception unit receiving a variety of types of context information from a context information collection system, a context information processing unit generating a corresponding detection request message when context information about web service use is received and transfer the corresponding detection request message to an abnormal detection unit, an abnormal detection unit comparing sequence of a use page and use speed, performed right after user access, with a pattern in the past access through an analysis of an initial use behavior pattern when the detection request message is received and to detect an abnormal use behavior, a profile management unit profiling pieces of context information according to various use behaviors of the user and store and manage the pieces of profiled context information, and an information analysis unit analyzing web site or DB use information.

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First Claim