Patent ID: 11870757
Assignee: WELLS FARGO BANK, N.A.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A non-transitory computer-readable medium storing instructions that, when executed, cause processing circuitry of a computing system to:
receive text data containing customer personal information, wherein the customer personal information originates from a customer-facing service associated with an externally-hosted application that is external to the computing system;
detect the customer personal information in the text data received from the customer-facing service using multiple detection layers to detect different types of customer personal information having different structures, wherein to detect the customer personal information in the text data the instructions cause the processing circuitry to:
detect, by a first detection layer comprising a rule-based model, a first type of customer personal information that is structured with a deterministic pattern,
detect, by a second detection layer comprising a heuristic rule-based model, a second type of customer personal information that is structured with a learned pattern, and
detect, by a third detection layer comprising a machine learning-based model, a third type of customer personal information that is unstructured;
generate tokenized data based on output of the multiple detection layers, wherein to generate the tokenized data, the instructions cause the processing circuitry to replace each instance of the customer personal information detected in the text data with a respective token; and
send a request including the tokenized data to the externally-hosted application.