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arXiv 2602.09319cs.CR
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检索增强生成的知识提取攻击与防御基准测试

Benchmarking Knowledge-Extraction Attack and Defense on Retrieval-Augmented Generation

University of Oregon(俄勒冈大学);Michigan State University(密歇根州立大学);Adobe Research(Adobe研究院);PNNL(太平洋西北国家实验室);Cisco AI Research(思科AI研究院);Florida State University(佛罗里达州立大学);University of Southern California(南加州大学);Texas A&M University(德克萨斯农工大学)

Zhisheng Qi, Utkarsh Sahu, Li Ma, Haoyu Han, Ryan Rossi, Franck Dernoncourt, Mahantesh Halappanavar, Nesreen Ahmed, Yushun Dong, Yue Zhao, Yu Zhang, Yu Wang

AI总结:

提出首个针对RAG系统知识提取攻击的系统性基准,涵盖多种攻击/防御策略、检索嵌入模型、生成器及数据集,在统一框架下评估,为隐私保护RAG系统提供实用基础。

摘要:

检索增强生成(RAG)已成为知识密集型应用的基石,包括企业聊天机器人、医疗助手和智能体记忆管理。然而,最近的研究表明,知识提取攻击可以通过恶意构造的查询恢复敏感的知识库内容,引发严重的知识产权和隐私问题。虽然先前的工作探索了单个攻击和防御技术,但研究格局仍然碎片化,涵盖异质的检索嵌入、多样的生成模型,以及基于非标准化指标和不一致数据集的评估。为了解决这一差距,我们引入了首个针对RAG系统知识提取攻击的系统性基准。我们的基准涵盖了广泛的攻击/防御策略、代表性的检索嵌入模型、开源/闭源生成器、(非)基于图的索引,所有都在统一的实验框架下使用标准化协议在多个跨语言数据集上进行评估。通过整合实验格局并实现可重复、可比较的评估,该基准为在面临新兴知识提取威胁时开发隐私保护的RAG系统提供了可操作的见解和实用基础。

英文摘要:

Retrieval-Augmented Generation (RAG) has become a cornerstone of knowledge-intensive applications, including enterprise chatbots, healthcare assistants, and agentic memory management. However, recent studies show that knowledge-extraction attacks can recover sensitive knowledge-base content through maliciously crafted queries, raising serious intellectual property and privacy concerns. While prior work has explored individual attack and defense techniques, the research landscape remains fragmented, spanning heterogeneous retrieval embeddings, diverse generation models, and evaluations based on non-standardized metrics and inconsistent datasets. To address this gap, we introduce the first systematic benchmark for knowledge-extraction attacks on RAG systems. Our benchmark covers broad attack/defense strategies, representative retrieval embedding models, open/closed-source generators, (non) graph-based indexing, all evaluated under a unified experimental framework with standardized protocols across multiple datasets spanning diverse languages. By consolidating the experimental landscape and enabling reproducible, comparable evaluation, this benchmark provides actionable insights and a practical foundation for developing privacy-preserving RAG systems in the face of emerging knowledge extraction threats.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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