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Caught in the Act of an Insider Attack: Detection and Assessment of Insider Threat

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Academic year: 2020

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Figure

Fig. 1.An overview of the CITD detection tool. The system comprises ofthree alerting tiers, based on policy violations and previously-known attacks,threshold-based anomalies, and deviation-based anomalies
Fig. 2.Overview of the detection system interface. The systems consists of multiple views, including an alert list (top left), a parallel co-ordinates view thatshows how users score against each anomaly metric (top right), a configuration pane (bottom left) and a text output pane (bottom right).
Fig. 3.Tree-structured profiles of user and role behaviours. The profileshows all the devices, activities, and attributes that the user has been observedperforming
Fig. 4.Detection system as a result of active learning. The analyst has rejected the alert on mpowel1969 (shown by the removal of the accept option)

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