Patent 9679131 was granted and assigned to Cybereason on June, 2017 by the United States Patent and Trademark Office.
A method and apparatus for intrusion detection, the method comprising: receiving a description of a computerized system, the description comprising two or more entities, one or more attribute for each entity and one or more statistical rule related to relationship between the entities; receiving data related to activity of the computerized system, the data comprising two or more events; grouping the events into two or more groups associated with the entities; comparing the groups in accordance with the statistical rule, to identify a group not complying with any of the statistical rules.