Facility for detecting intruders and suspect callers in a computer installation and a security system including such a facility
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United States of America Patent
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Apr 15, 1997
Grant Date -
N/A
app pub date -
Jun 8, 1994
filing date -
Jun 9, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
A facility for detecting intrusions and suspect users in a computer installation, and a security system incorporating such a facility that makes use of surveillance data relating to the operation of the installation. The facility includes elements for modelling the computer installation, its users, and their respective behavior with the help of a semantic network; elements for comparing the modellized behavior of the system and of its users relative to modellized normal behavior; elements for interpreting observed anomalies in terms of intrusions and of intrusion hypothesis; elements for interpreting observed intrusion hypotheses and intrusions in order to indicate them and enable restraint actions to be prepared. Elements are provided to evaluate the degree of suspicion of users. The elements co-operate with one another for the purpose of providing information.
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