arXiv AI By Haoran Bu, Zejian Chen, Litian Zhang, Xi Zhang

GraphWake: Group Polarization via Memory-Mediated Polarization Cascade in LLM-Agent Communities

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GraphWake demonstrates a new threat called Memory‑Mediated Polarization Cascade, where LLM‑driven agents use their memory to persistently store and later reproduce arguments that reinforce their stances. The attack unfolds in three stages: exposure and memory retention, retrieval and reproduction during neutral discussion, and iterative propagation to untreated agents. Experiments show that GraphWake significantly increases group polarization across various discussions and memory systems.

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