System and method for modeling behavior change and consistency to detect malicious insiders

摘要

One embodiment of the present invention provides a system for identifying anomalies. During operation, the system obtains work practice data associated with a plurality of users. The work practice data includes a plurality of user events. The system further categorizes the work practice data into a plurality of domains based on types of the user events, models user behaviors within a respective domain based on work practice data associated with the respective domain, and identifies at least one anomalous user based on modeled user behaviors from the multiple domains.