Pseudonymized data enrichment

The system addresses data privacy and security challenges by using pseudonymized data enrichment to securely combine and analyze user data, ensuring privacy and compliance through encryption and hashing, thereby reducing exposure to data breaches.

WO2025251002A1 Publication Date: 2025-12-04TRANS UNION LLC
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Patent Information

Application Number
PCT/US2025/031746
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-05-31
Filing Date
2025-05-30
Publication Date
2025-12-04

AI Technical Summary

Technical Problem

Existing data management systems face challenges in maintaining privacy and security of sensitive user data, particularly in combining first-party and third-party data, leading to risks such as data breaches and non-compliance with data protection regulations.

Method used

A system for pseudonymized data enrichment that uses encryption and hashing to replace personally identifiable information with artificial identifiers, allowing secure data combination and analysis while maintaining user privacy, by processing data within a secure environment and using pseudonymized representations.

Benefits of technology

Ensures privacy protection by preventing direct exposure of user identifiers and sensitive data, reducing the risk of data breaches, and enabling secure data sharing and analysis without compromising privacy.

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Abstract

A request for enrichment data for enriching user data for a plurality of users may be received from a user device within a first data environment. The request may include, for each user, a respective encryption key used to encrypt the respective user data, respective encrypted user data, and an indication of a respective hashing rule used to generate the respective encryption key. The encrypted user data for the users may be decrypted in a second data environment using the encryption keys. The hashing rule may be used to generate pseudonymized representations of the decrypted user data. The pseudonymized representations of the decrypted user data may be mapped to pseudonymized representations of the enrichment data that correspond to the user data. The pseudonymized representations of the decrypted user data mapped to the pseudonymized representations of the enrichment data may be sent to the user device within the first data environment.
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