Patent ID: 11889024
Assignee: PINDROP SECURITY, INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 10:
11. A system comprising:
a server comprising a processor configured to:
obtain a call-data pair of call data received for a current call, the call-data pair including a carrier metadata value of a type of carrier metadata value correlated to a derived metadata value of a type of derived metadata value;
obtain probability data according to the call data of the current call, the probability data comprising a machine-learning architecture trained to determine a risk score for the call data and a probability value indicating a probability of occurrence of the call-data pair;
generate a feature vector for the current call based upon the probability value, the derived metadata value, and the carrier metadata value of the call-data pair;
generate the risk score for the current call by applying the machine-learning architecture on the feature vector of the current call; and
identify the current call as a fraudulent call in response to the server determining that the risk score satisfies a fraud threshold score.