Dynamic privacy preserving data linkage in distributed computing systems

Abstract

Devices and techniques are generally described for dynamic privacy preserving data linkages. In some examples, a first data structure may store non-personal data and a second data structure may store personally identifiable information (PII). The second data structure may store first identifier data identifying first PII. A first computing service may generate first transient identifier data associated with a first time-to-live (TTL) value. The first computing service may store the first transient identifier data and the first TTL value in a third data structure in association with the first identifier data. The first computing service may send the first transient identifier data to a first computer processing system. In some examples, the first computer processing system may not be privileged to directly access the second data structure.