Patent ID: 11870932
Assignee: PINDROP SECURITY, INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A computer-implemented method for detecting gateways, the method comprising:
obtaining, by a computer, call data of a plurality of prior calls associated with a plurality of automatic number identifications (ANIs);
for each ANI of the plurality of ANIs:
extracting, by the computer, a plurality of features from one or more prior calls associated with the ANI of the plurality of prior calls;
generating, by the computer, a feature vector for the ANI based upon the plurality features extracted from the one or more prior calls associated with the ANI; and
generating, by the computer, a gateway score for the ANI profile by applying an anomaly detection to the ANI;

obtaining, by the computer, a gateway threshold and a contamination factor associated with the gateway threshold; and
identifying, by the computer, at least one ANI as at least one gateway based upon the gateway score of the at least one ANI and the gateway threshold.