Author

Xun Chen

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Preprint Oct 2026

Black-Box Red-Teaming of Multi-Agent Systems via Reinforcement Learning

Large language model (LLM) agents are increasingly deployed in multi-agent systems (MAS) to accomplish complex tasks. Prior black-box red-teaming attacks mainly focus on single agents, but we find that these methods are far less effective in MAS, where multiple sub-agents may not directly interact with the user. Theref...

Yu-Qi Jia, Hang-Sheng Zhang, Chen-Xi Liu et al. · 1 citation

Preprint Aug 2026

A Multimodal Automatic Redteaming Evaluation based on Atomic Jailbreak Strategy Decoupling and Combination

This work proposes a multimodal automated red team jailbreak method named Hierarchical Atomic Combination Attack (HACA), based on a six-dimensional strategy space, where a cross-modal joint planner is used to select and combine the different atomic jailbreak strategy for subsequent jailbreak command generation.

Shiji Zhao, Yuxuan Zhou, Chen Xiong et al. · 0 citations