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Large Language Model (LLM)-based agents are increasingly deployed in real-world applications such as "digital assistants, autonomous customer service, and decision-support systems", where their ability to "interact in multi-turn,…

Artificial Intelligence · Computer Science 2025-07-21 Xueyang Zhou , Weidong Wang , Lin Lu , Jiawen Shi , Guiyao Tie , Yongtian Xu , Lixing Chen , Pan Zhou , Neil Zhenqiang Gong , Lichao Sun

The emergence of large language models (LLMs) enables the development of intelligent agents capable of engaging in complex and multi-turn dialogues. However, multi-agent collaboration faces critical safety challenges, such as hallucination…

Artificial Intelligence · Computer Science 2025-10-16 Jialong Zhou , Lichao Wang , Xiao Yang

Multi-agent systems powered by Large Language Models (LLM-MAS) have demonstrated remarkable capabilities in collaborative problem-solving. However, their deployment also introduces new security risks. Existing research on LLM-based agents…

Multiagent Systems · Computer Science 2025-10-07 Yizhe Xie , Congcong Zhu , Xinyue Zhang , Tianqing Zhu , Dayong Ye , Minghao Wang , Chi Liu

AI agents powered by large language models (LLMs) are being deployed at scale, yet we lack a systematic understanding of how the choice of backbone LLM affects agent security. The non-deterministic sequential nature of AI agents complicates…

Cryptography and Security · Computer Science 2026-02-25 Julia Bazinska , Max Mathys , Francesco Casucci , Mateo Rojas-Carulla , Xander Davies , Alexandra Souly , Niklas Pfister

Graph topology is a fundamental determinant of memory leakage in multi-agent LLM systems, yet its effects remain poorly quantified. We introduce MAMA (Multi-Agent Memory Attack), a framework that measures how network structure shapes…

Cryptography and Security · Computer Science 2026-01-13 Jinbo Liu , Defu Cao , Yifei Wei , Tianyao Su , Yuan Liang , Yushun Dong , Yan Liu , Yue Zhao , Xiyang Hu

Recent advancements in large language model (LLM)-based agents have demonstrated that collective intelligence can significantly surpass the capabilities of individual agents, primarily due to well-crafted inter-agent communication…

Multiagent Systems · Computer Science 2025-02-07 Guibin Zhang , Yanwei Yue , Xiangguo Sun , Guancheng Wan , Miao Yu , Junfeng Fang , Kun Wang , Tianlong Chen , Dawei Cheng

Large Language Models (LLMs) have revolutionised natural language processing tasks, particularly as chat agents. However, their applicability to threat detection problems remains unclear. This paper examines the feasibility of employing…

Cryptography and Security · Computer Science 2025-04-21 Paul R. B. Houssel , Priyanka Singh , Siamak Layeghy , Marius Portmann

TThis paper argues that \textbf{a comprehensive vulnerability analysis is essential for building trustworthy Large Language Model-based Multi-Agent Systems (LLM-MAS)}. These systems, which consist of multiple LLM-powered agents working…

Cryptography and Security · Computer Science 2026-05-19 Pengfei He , Yue Xing , Juanhui Li , Shen Dong , Zhenwei Dai , Xianfeng Tang , Hui Liu , Han Xu , Zhen Xiang , Charu C. Aggarwal , Hui Liu

Large Language Models (LLMs) have gained widespread popularity across diverse domains involving text generation, summarization, and various natural language processing tasks. Despite their inherent limitations, LLM-based designs have shown…

Cryptography and Security · Computer Science 2024-04-17 Maria Rigaki , Ondřej Lukáš , Carlos A. Catania , Sebastian Garcia

Since the official release of ChatGPT in 2022, large language models (LLMs) have rapidly evolved from chatbot-style interfaces into agentic systems that can delegate work through tools and newly spawned subagents. While these capabilities…

Cryptography and Security · Computer Science 2026-05-12 Ziwen Cai , Yihe Zhang , Xiali Hei

LLM-based multi-agent systems (LLM-MAS) have become a promising paradigm for solving complex tasks through role specialization, tool use, memory, and collaborative reasoning. However, these interactions create new security risks that…

Machine Learning · Computer Science 2026-05-19 Bingyu Yan , Xiaoming Zhang , Jinyu Hou , Chaozhuo Li , Ziyi Zhou , Xiaozhe Zhang , Litian Zhang

Evaluating the security of multi-agent systems (MASs) powered by large language models (LLMs) is challenging, primarily because of the systems' complex internal dynamics and the evolving nature of LLM vulnerabilities. Traditional attack…

Cryptography and Security · Computer Science 2025-06-04 Parth Atulbhai Gandhi , Akansha Shukla , David Tayouri , Beni Ifland , Yuval Elovici , Rami Puzis , Asaf Shabtai

Recent advances in Large Language Models (LLMs) have enabled multi-agent systems that simulate real-world interactions with near-human reasoning. While previous studies have extensively examined biases related to protected attributes such…

Artificial Intelligence · Computer Science 2025-06-03 Min Choi , Keonwoo Kim , Sungwon Chae , Sangyeob Baek

Large Language Models (LLMs) promise to accelerate discovery by reasoning across the expanding scientific landscape. Yet, the challenge is no longer access to information but connecting it in meaningful, domain-spanning ways. In materials…

Artificial Intelligence · Computer Science 2026-02-10 Isabella A. Stewart , Tarjei Paule Hage , Yu-Chuan Hsu , Markus J. Buehler

Large Language Model (LLM) agents face security vulnerabilities spanning AI-specific and traditional software domains, yet current research addresses these separately. This study bridges this gap through comparative evaluation of Function…

Cryptography and Security · Computer Science 2025-07-10 Tarek Gasmi , Ramzi Guesmi , Ines Belhadj , Jihene Bennaceur

Large Language Models (LLMs) have transformed software development, enabling AI-powered applications known as LLM-based agents that promise to automate tasks across diverse apps and workflows. Yet, the security implications of deploying…

Cryptography and Security · Computer Science 2025-11-07 Chenghao Du , Quanfeng Huang , Tingxuan Tang , Zihao Wang , Adwait Nadkarni , Yue Xiao

Large Language Model-based Multi-Agent Systems (MASs) have emerged as a powerful paradigm for tackling complex tasks through collaborative intelligence. However, the topology of these systems--how agents in MASs should be configured,…

Multiagent Systems · Computer Science 2025-10-20 Jiaxi Yang , Mengqi Zhang , Yiqiao Jin , Hao Chen , Qingsong Wen , Lu Lin , Yi He , Srijan Kumar , Weijie Xu , James Evans , Jindong Wang

Large Language Model (LLM) agents remain vulnerable to safety threats from the external environment, where attackers inject adversarial content into external observations such as tool-returned data, webpages, or MCP context, causing harmful…

Artificial Intelligence · Computer Science 2026-05-28 Yongxiang Li , Moxin Li , Zhixin Ma , Fengbin Zhu , Dongrui Liu , Wenjie Wang , Fuli Feng

With the rise of social media, misinformation has become increasingly prevalent, fueled largely by the spread of rumors. This study explores the use of Large Language Model (LLM) agents within a novel framework to simulate and analyze the…

Social and Information Networks · Computer Science 2025-02-04 Tianrui Hu , Dimitrios Liakopoulos , Xiwen Wei , Radu Marculescu , Neeraja J. Yadwadkar

As Large Language Models (LLMs) grow increasingly powerful, multi-agent systems are becoming more prevalent in modern AI applications. Most safety research, however, has focused on vulnerabilities in single-agent LLMs. These include prompt…

Multiagent Systems · Computer Science 2024-10-11 Donghyun Lee , Mo Tiwari