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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

Large Language Model-based Multi-Agent Systems (LLM-MAS) have demonstrated strong capabilities in solving complex tasks but remain vulnerable when agents receive unreliable messages. This vulnerability stems from a fundamental gap: LLM…

Cryptography and Security · Computer Science 2026-04-15 Pengfei He , Zhenwei Dai , Xianfeng Tang , Yue Xing , Hui Liu , Jingying Zeng , Qiankun Peng , Shrivats Agrawal , Samarth Varshney , Suhang Wang , Jiliang Tang , Qi He

Effectively processing long contexts remains a fundamental yet unsolved challenge for large language models (LLMs). Existing single-LLM-based methods primarily reduce the context window or optimize the attention mechanism, but they often…

Computation and Language · Computer Science 2026-04-22 Yichen Jiang , Jiakang Yuan , Chongjun Tu , Peng Ye , Tao Chen

With recent advances in Large Language Models (LLMs), Agentic AI has become phenomenal in real-world applications, moving toward multiple LLM-based agents to perceive, learn, reason, and act collaboratively. These LLM-based Multi-Agent…

Artificial Intelligence · Computer Science 2025-01-14 Khanh-Tung Tran , Dung Dao , Minh-Duong Nguyen , Quoc-Viet Pham , Barry O'Sullivan , Hoang D. Nguyen

Cybersecurity is being fundamentally reshaped by foundation-model-based artificial intelligence. Large language models now enable autonomous planning, tool orchestration, and strategic adaptation at scale, challenging security architectures…

Cryptography and Security · Computer Science 2025-12-30 Tao Li , Quanyan Zhu

Agentic AI systems, built upon large language models (LLMs) and deployed in multi-agent configurations, are redefining intelligence, autonomy, collaboration, and decision-making across enterprise and societal domains. This review presents a…

Artificial Intelligence · Computer Science 2025-12-19 Shaina Raza , Ranjan Sapkota , Manoj Karkee , Christos Emmanouilidis

Over the past two years, the use of large language models (LLMs) has advanced rapidly. While these LLMs offer considerable convenience, they also raise security concerns, as LLMs are vulnerable to adversarial attacks by some well-designed…

Computation and Language · Computer Science 2025-04-24 Guang Lin , Toshihisa Tanaka , Qibin Zhao

Large Language Model (LLM) Agents are an emerging computing paradigm that blends generative machine learning with tools such as code interpreters, web browsing, email, and more generally, external resources. These agent-based systems…

Cryptography and Security · Computer Science 2024-10-23 Xiaohan Fu , Shuheng Li , Zihan Wang , Yihao Liu , Rajesh K. Gupta , Taylor Berg-Kirkpatrick , Earlence Fernandes

Large language model (LLM)-based multi-agent systems increasingly rely on intermediate communication to coordinate complex tasks. While most existing systems communicate through natural language, recent work shows that latent communication,…

Artificial Intelligence · Computer Science 2026-05-22 Sadia Asif , Mohammad Mohammadi Amiri , Momin Abbas , Prasanna Sattigeri , Karthikeyan Natesan Ramamurthy

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

Multi-agent systems leverage advanced AI models as autonomous agents that interact, cooperate, or compete to complete complex tasks across applications such as robotics and traffic management. Despite their growing importance, safety in…

Multiagent Systems · Computer Science 2025-05-28 Falong Fan , Xi Li

Large Language Models (LLMs) are increasingly deployed as autonomous agents, yet their practical utility is fundamentally constrained by a limited context window and state desynchronization resulting from the LLMs' stateless nature and…

Artificial Intelligence · Computer Science 2025-10-17 Fikresilase Wondmeneh Abebayew

Large language model (LLM) based agents have recently attracted much attention from the research and industry communities. Compared with original LLMs, LLM-based agents are featured in their self-evolving capability, which is the basis for…

Artificial Intelligence · Computer Science 2024-04-23 Zeyu Zhang , Xiaohe Bo , Chen Ma , Rui Li , Xu Chen , Quanyu Dai , Jieming Zhu , Zhenhua Dong , Ji-Rong Wen

Large language models (LLMs) and LLM-based agents have been widely deployed in a wide range of applications in the real world, including healthcare diagnostics, financial analysis, customer support, robotics, and autonomous driving,…

Cryptography and Security · Computer Science 2025-05-20 Wenrui Xu , Keshab K. Parhi

While large language model (LLM) agents can effectively use external tools for complex real-world tasks, they require memory systems to leverage historical experiences. Current memory systems enable basic storage and retrieval but lack…

Computation and Language · Computer Science 2025-10-09 Wujiang Xu , Zujie Liang , Kai Mei , Hang Gao , Juntao Tan , Yongfeng Zhang

Large language models are increasingly deployed as *deep agents* that plan, maintain persistent state, and invoke external tools, shifting safety failures from unsafe text to unsafe *trajectories*. We introduce **AgentFence**, an…

Cryptography and Security · Computer Science 2026-02-10 Sai Puppala , Ismail Hossain , Md Jahangir Alam , Yoonpyo Lee , Jay Yoo , Tanzim Ahad , Syed Bahauddin Alam , Sajedul Talukder

As large language models (LLMs) expose systemic security challenges in high risk applications, including privacy leaks, bias amplification, and malicious abuse, there is an urgent need for a dynamic risk assessment and collaborative defence…

Cryptography and Security · Computer Science 2026-02-05 Xiaoyan Zhang , Dongyang Lyu , Xiaoqi Li

This study explores integrating large language models (LLMs) with situational awareness-based planning (SAP) to enhance the decision-making capabilities of AI agents in dynamic and uncertain environments. We employ a multi-agent reasoning…

Artificial Intelligence · Computer Science 2024-06-18 Liman Wang , Hanyang Zhong

Large language model (LLM) agents have demonstrated remarkable capabilities in complex reasoning and decision-making by leveraging external tools. However, this tool-centric paradigm introduces a previously underexplored attack surface,…

Artificial Intelligence · Computer Science 2026-01-08 Kanghua Mo , Li Hu , Yucheng Long , Zhihao Li

Recently, Large Language Model (LLM)-empowered recommender systems (RecSys) have brought significant advances in personalized user experience and have attracted considerable attention. Despite the impressive progress, the research question…

Cryptography and Security · Computer Science 2025-04-25 Liang-bo Ning , Shijie Wang , Wenqi Fan , Qing Li , Xin Xu , Hao Chen , Feiran Huang