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Xiaohan Zhang

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Demystifying the (In)Security of QR Code-based Login in Real-world DeploymentsUSENIX Security '252025-08-13
Presents a systematic measurement showing QR code logins across 350 sites, 109 testable, and 43% vulnerable; generalizes the QRLogin workflow, exposes six…
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An Empirical Study of Web Resource Manipulation in Real-world Mobile Apps...USENIX Security '182018-08-15
An automated static tool XPMChecker scans 80,694 Google Play apps and finds that 49.2% of detected web-resource manipulations are cross-principal manipulation…
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