Method and system for double anonymization of data

US11397831B2 · kind B2 · utility

Assignee

• MASTERCARD INTERNATIONAL INCORPORATED · US

Inventors

• Todd Christian Lowenberg · Redding, US
• Andrew Reiskind · Armonk, US
• Curtis Villars · Chatham, US
• Rohit Chauhan · Somers, US
• JoAnn C. Stonier · Pelham, US

Key dates

• Filing date: Aug 11, 2020
• Grant date: Jul 26, 2022
• Expiry date: Jan 30, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G06Q2220/10
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

A method for double anonymization of data includes: receiving, by a first computing system, a plurality of first data sets, each including a set identifier and personally identifiable information; anonymizing, by the first computing system, each of the first data sets, by hashing the set identifier included in each first data set to obtain a hashed identifier and deidentifying the personally identifiable information; transmitting, by the first computing system, the plurality of anonymized first data sets to a second computing system, wherein the second computing system is distinct and separate from the first computing system; anonymizing, by the second computing system, each of the anonymized first data sets, by hashing the hashed identifier to obtain a double-hashed identifier; and storing, in the second computing system or a third separate and distinct computing system, the plurality of double anonymized first data.