Patent ID: 11882453
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 15:
16. A fraudulent subscription detection system for identifying a second fraudulent subscription replacing a first fraudulent subscription, the fraudulent subscription detection system comprising processing circuitry, the processing circuitry being configured to cause the fraudulent subscription detection system to:
obtain notification of the first fraudulent subscription having been identified in a SIM box;
obtain historical network data of the first fraudulent subscription;
generate a model based on the historical network data;
identify the second fraudulent subscription replacing the first fraudulent subscription in the SIM box upon providing live network data as input to the model, identifying the second fraudulent subscription comprising:
generating, using the model, a set of candidate subscriptions;
determining an individual score for each candidate subscription in the set of candidate subscriptions, each individual score being generated from the live network data, each individual score relating to each candidate subscription in the set of candidate subscriptions corresponding to whether the candidate subscription in the set of candidate subscriptions is a fraudulent subscription;
comparing a highest individual score of all of the individual scores relating to each candidate subscription in the set of candidate subscriptions to a first threshold; and
the second fraudulent subscription being identified as a candidate subscription from the set of candidate subscriptions having the highest individual score that is above the first threshold; and

provide an identification of the second fraudulent subscription to at least one of a subscription manager entity and a user interface of a Manual Analysis component.