Exploring the Integration of Differential Privacy in Cybersecurity Analytics: Balancing Data Utility and Privacy in Threat Intelligence

TL;DR

This paper explores how Differential Privacy can be integrated into cybersecurity analytics, especially in SIEM systems, to enhance data privacy without compromising analytical utility, supported by real-world case studies.

Contribution

It demonstrates the application of Differential Privacy in cybersecurity analytics, highlighting its potential to balance privacy and utility in threat intelligence sharing.

Findings

DP effectively protects sensitive threat data in SIEM systems

Trade-offs exist between privacy level and data utility via epsilon parameter

Real-world case studies show DP's practical benefits in cybersecurity

Abstract

To resolve the acute problem of privacy protection and guarantee that data can be used in the context of threat intelligence, this paper considers the implementation of Differential Privacy (DP) in cybersecurity analytics. DP, which is a sound mathematical framework, ensures privacy by adding a controlled noise to data outputs and thus avoids sensitive information disclosure even with auxiliary datasets. The use of DP in Security Information and Event Management (SIEM) systems is highlighted, and it can be seen that DP has the capability to protect event log and threat data analysis without interfering with the analytical efficiency. The utility versus privacy trade-offs linked to the maximization of the epsilon parameter, which is one of the critical components of DP mechanisms, is pointed out. The article shows the transformative power of DP in promoting safe sharing of data and joint threat intelligence through real-world systems and case studies. Finally, this paper makes DP one of the key strategies to improve privacy-preserving analytics in the field of cybersecurity.