Minhui Xue

Fake reviews tell no tales? Dissecting click farming in content-generated social networks

2017

Recently, there has been a radial shift from traditional online social networks to content-generated social networks (CGSNs). Contemporary CGSNs, such as Dianping and TripAdvisor, are often the targets of click farming in which fake reviews …

Vetting Security and Privacy of Global COVID-19 Contact Tracing Applications

2020 · arXiv (Cornell University)

The rapid spread of COVID-19 has made traditional manual contact tracing to identify potential persons in close physical proximity to an known infected person challenging. Hence, a number of public health authorities have experimented with …

Understanding and Detecting Mobile Ad Fraud Through the Lens of Invalid Traffic

2021

Along with gaining popularity of Real-Time Bidding (RTB) based programmatic advertising, the click farm based invalid traffic, which leverages massive real smartphones to carry out large-scale ad fraud campaigns, is becoming one of the major …