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Author

Ziqi Zhou

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Open access Sep 2026

FakeMark: gradient-guided false watermark claims via robust feature fusion

FakeMark is presented, a gradient-guided false-claim attack for image classifiers that uses a white-box surrogate but never queries or accesses the victim model during attack construction, to motivate provenance-aware, multi-factor ownership protocols.

Yu-Tong Wu, Wen-Yue Li, He-Wang Nie et al. · 0 citations
Preprint Aug 2026

Targeted Counterfactual Fingerprinting for Black-Box LLM Ownership Verification

Large language models (LLMs) are high-value assets that can be derived through redeployment, fine-tuning, quantization, or further alignment. Because deployed LLMs are commonly exposed only through query APIs, ownership verification must often rely on black-box text responses. This setting is difficult: generations are...

Yu-Tong Wu, Xiao-Fan Bai, Shixin Li et al. · 1 citation
Jul 2026

TYPO: Instruction-Dense Visual Jailbreaks against Commercial Closed-Source Image-Generation Models

This paper introduces the concept of instruction-dense visual jailbreaks, in which image-generation models produce detailed, readable, and actionable harmful instructions within images, and proposes TYPO, a black-box framework that exploits this safety gap by automatically generating adversarial TYPOgraphy prompts.

Meng Xie, Li Zeng, Hang Zhang et al. · 0 citations

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