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Pei Chen

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Preprint Oct 2026

From Public Posts to AI-Search Citations: Measuring the Fragility of AI Search

As more users ask AI systems for information, AI-search platforms are becoming a common gateway to web information. Unlike traditional search, which maps keywords to ranked pages, AI search retrieves pages, filters sources, selects citations, and generates answers before users see sources. This selection layer may ampl...

Qi Liu, Geng Hong, Xin-Yan Zhang et al. · 0 citations
Preprint Sep 2026

One Click to Leak: Characterizing the Real-World Usage and Threat Impact of MNO-based Single Sign-On Websites

This work provides a comprehensive study of web-based MSSO deployment and security implications, and designs a hierarchical detection framework using passive DNS correlations and URL reconstruction from search data to identify MSSO-enabled websites.

Jia-Sheng Huang, Ming-Xuan Liu, Pei Chen et al. · 0 citations
Jul 2026

FlowGuard: From Signals to Evidence for MCP Security Detection

Results show that evidence-grounded detection can assess both execution-related and semantic risks in MCP interactions, and compared with existing dynamic scanners, FlowGuard reduces end-to-end latency by up to 2.23x.

Baichao An, Pei Chen, Geng Hong et al. · 0 citations

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