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

Claim 10:
11. A system comprising:
a customer-facing service associated with an externally-hosted application that is external to the system; and
an application pipeline of the customer-facing service that makes requests to the externally-hosted application on behalf of the customer-facing service, the application pipeline comprising a computing system that includes a memory and processing circuitry in communication with the memory, the processing circuitry configured to:
receive text data containing customer personal information, wherein the customer personal information originates from the customer-facing service;
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 processing circuitry is configured 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 processing circuitry is configured 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.