Decoupling Identity from Utility: Privacy-by-Design Frameworks for Financial Ecosystems

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Hauptverfasser: Ibikunle, Ifayoyinsola, Farnan, Tyler, Kumar, Senthil, Pereira, Mayana
Format: Preprint
Veröffentlicht: 2026
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author Ibikunle, Ifayoyinsola
Farnan, Tyler
Kumar, Senthil
Pereira, Mayana
author_facet Ibikunle, Ifayoyinsola
Farnan, Tyler
Kumar, Senthil
Pereira, Mayana
contents Financial institutions face tension between maximizing data utility and mitigating the re-identification risks inherent in traditional anonymization methods. This paper explores Differentially Private (DP) synthetic data as a robust "Privacy by Design" framework to resolve this conflict, ensuring output privacy while satisfying stringent regulatory obligations. We examine two distinct generative paradigms: Direct Tabular Synthesis, which reconstructs high-fidelity joint distributions from raw data, and DP-Seeded Agent-Based Modeling (ABM), which uses DP-protected aggregates to parameterize complex, stateful simulations. While tabular synthesis excels at reflecting static historical correlations for QA testing and business analytics, the DP-Seeded ABM offers a forward-looking "counterfactual laboratory" capable of modeling dynamic market behaviors and black swan events. By decoupling individual identities from data utility, these methodologies eliminate traditional data-clearing bottlenecks, enabling seamless cross-institutional research and compliant decision-making in an evolving regulatory landscape.
format Preprint
id arxiv_https___arxiv_org_abs_2604_14495
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Decoupling Identity from Utility: Privacy-by-Design Frameworks for Financial Ecosystems
Ibikunle, Ifayoyinsola
Farnan, Tyler
Kumar, Senthil
Pereira, Mayana
Computational Engineering, Finance, and Science
Artificial Intelligence
Cryptography and Security
Financial institutions face tension between maximizing data utility and mitigating the re-identification risks inherent in traditional anonymization methods. This paper explores Differentially Private (DP) synthetic data as a robust "Privacy by Design" framework to resolve this conflict, ensuring output privacy while satisfying stringent regulatory obligations. We examine two distinct generative paradigms: Direct Tabular Synthesis, which reconstructs high-fidelity joint distributions from raw data, and DP-Seeded Agent-Based Modeling (ABM), which uses DP-protected aggregates to parameterize complex, stateful simulations. While tabular synthesis excels at reflecting static historical correlations for QA testing and business analytics, the DP-Seeded ABM offers a forward-looking "counterfactual laboratory" capable of modeling dynamic market behaviors and black swan events. By decoupling individual identities from data utility, these methodologies eliminate traditional data-clearing bottlenecks, enabling seamless cross-institutional research and compliant decision-making in an evolving regulatory landscape.
title Decoupling Identity from Utility: Privacy-by-Design Frameworks for Financial Ecosystems
topic Computational Engineering, Finance, and Science
Artificial Intelligence
Cryptography and Security
url https://arxiv.org/abs/2604.14495