CalcuLatency: Leveraging Cross-Layer Network Latency Measurements to Detect Proxy-Enabled Abuse

Watch a research presentation from USENIX Security '24 exploring CalcuLatency, an innovative system for detecting proxy-enabled abuse in ad delivery and user reward systems. Learn how researchers from the University of Michigan developed measurement techniques that leverage differences in application and network layer latencies to identify proxy connections. Discover how this open-source solution helps service providers balance fraud prevention with user privacy by using minimal connection features to detect proxy usage. Understand the evaluation methodology involving four distinct measurement approaches and their integration into a comprehensive system for proxy detection. Gain insights into addressing the challenge of maintaining privacy-centric business models while preventing coordinated abuse through VPNs and proxies.