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Modern software infrastructure increasingly relies on LLM agents for development and maintenance, such as Claude Code and Gemini-cli. However, these AI agents differ fundamentally from traditional deterministic software, posing a…

Operating Systems · Computer Science 2025-10-21 Yusheng Zheng , Yanpeng Hu , Tong Yu , Andi Quinn

Large language model agents increasingly rely on persistent memory to store past interactions, retrieve relevant demonstrations, and improve long-horizon task execution. However, this memory mechanism also creates a practical security…

Artificial Intelligence · Computer Science 2026-05-25 Zhewen Tan , Yilun Yao , Huiyan Jin , Wenhan Yu , Guoan Wang , Mengyuan Fan , liang lu , Feng Liu , Xiangzheng Zhang , Duohe Ma , Tong Yang , Lin Sun

Autonomous Large Language Model (LLM) agents are increasingly deployed to conduct complex tasks by interacting with external tools, APIs, and memory stores. However, processing untrusted external data exposes these agents to severe security…

Cryptography and Security · Computer Science 2026-04-28 Yuandao Cai , Wensheng Tang , Cheng Wen , Shengchao Qin

With the development of technology, large language models (LLMs) have dominated the downstream natural language processing (NLP) tasks. However, because of the LLMs' instruction-following abilities and inability to distinguish the…

Cryptography and Security · Computer Science 2025-10-07 Yulin Chen , Haoran Li , Yuan Sui , Yangqiu Song , Bryan Hooi

As large language models (LLMs) evolve into autonomous agents, persistent memory at the API layer is essential for enabling context-aware behavior across LLMs and multi-session interactions. Existing approaches force vendor lock-in and rely…

Machine Learning · Computer Science 2026-03-23 Luiz C. Borro , Luiz A. B. Macarini , Gordon Tindall , Michael Montero , Adam B. Struck

Prompt injection poses a serious threat to the reliability and safety of LLM agents. Recent defenses against prompt injection, such as Instruction Hierarchy and SecAlign, have shown notable robustness against static attacks. However, to…

Cryptography and Security · Computer Science 2025-10-07 Yuxin Wen , Arman Zharmagambetov , Ivan Evtimov , Narine Kokhlikyan , Tom Goldstein , Kamalika Chaudhuri , Chuan Guo

AI agents, empowered by Large Language Models (LLMs) and communication protocols such as MCP and A2A, have rapidly evolved from simple chatbots to autonomous entities capable of executing complex, multi-step tasks, demonstrating great…

Machine Learning · Computer Science 2025-05-26 Erhu Feng , Wenbo Zhou , Zibin Liu , Le Chen , Yunpeng Dong , Cheng Zhang , Yisheng Zhao , Dong Du , Zhichao Hua , Yubin Xia , Haibo Chen

Autonomous Large Language Model (LLM) agents, exemplified by OpenClaw, demonstrate remarkable capabilities in executing complex, long-horizon tasks. However, their tightly coupled instant-messaging interaction paradigm and high-privilege…

Recent advancements in Large Language Model (LLM) agents have enabled complex multi-turn agentic tasks requiring extensive tool calling, where conversations can span dozens of API calls with increasingly large context windows. However,…

Computation and Language · Computer Science 2026-02-03 Elias Lumer , Faheem Nizar , Akshaya Jangiti , Kevin Frank , Anmol Gulati , Mandar Phadate , Vamse Kumar Subbiah

LLM-integrated applications are vulnerable to prompt injection attacks, where an attacker contaminates the input to inject malicious instructions, causing the LLM to follow the attacker's intent instead of the original user's. Existing…

Cryptography and Security · Computer Science 2026-01-27 Wei Zou , Yupei Liu , Yanting Wang , Ying Chen , Neil Gong , Jinyuan Jia

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

A major challenge in developing robust and generalizable Human Activity Recognition (HAR) systems for smart homes is the lack of large and diverse labeled datasets. Variations in home layouts, sensor configurations, and individual behaviors…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Zikang Leng , Megha Thukral , Yaqi Liu , Hrudhai Rajasekhar , Shruthi K. Hiremath , Jiaman He , Thomas Plötz

When combining Large Language Models (LLMs) with autonomous agents, used in network monitoring and decision-making systems, this will create serious security issues. In this research, the MAESTRO framework consisting of the seven layers…

Cryptography and Security · Computer Science 2025-08-15 Pallavi Zambare , Venkata Nikhil Thanikella , Ying Liu

Modern LLM agents combine long-term memory for personalization with tool-calling interfaces for taking actions in the world -- a combination underpinning contemporary production systems. We study a previously unexamined failure of this…

Cryptography and Security · Computer Science 2026-05-26 Mahavir Dabas , Jihyun Jeong , Ming Jin , Ruoxi Jia

The integration of large language models (LLMs) into enterprise systems has introduced a new class of covert security vulnerabilities, particularly within logic execution layers and persistent memory contexts. This paper introduces…

Cryptography and Security · Computer Science 2025-08-08 Hammad Atta , Ken Huang , Manish Bhatt , Kamal Ahmed , Muhammad Aziz Ul Haq , Yasir Mehmood

While Large Language Model (LLM) based agents excel at complex tasks, their performance in open-ended scenarios is often constrained by isolated operation and reliance on static databases, missing the dynamic knowledge exchange of human…

Computation and Language · Computer Science 2026-03-06 Hang Gao , Yongfeng Zhang

LLM-powered agents face a persistent challenge: learning from their execution experiences to improve future performance. While agents can successfully complete many tasks, they often repeat inefficient patterns, fail to recover from similar…

Artificial Intelligence · Computer Science 2026-03-12 Gaodan Fang , Vatche Isahagian , K. R. Jayaram , Ritesh Kumar , Vinod Muthusamy , Punleuk Oum , Gegi Thomas

Security in LLM agents is inherently contextual. For example, the same action taken by an agent may represent legitimate behavior or a security violation depending on whose instruction led to the action, what objective is being pursued, and…

Cryptography and Security · Computer Science 2026-03-23 Vincent Siu , Jingxuan He , Kyle Montgomery , Zhun Wang , Neil Gong , Chenguang Wang , Dawn Song

Autonomous browsing agents powered by large language models (LLMs) are increasingly used to automate web-based tasks. However, their reliance on dynamic content, tool execution, and user-provided data exposes them to a broad attack surface.…

Cryptography and Security · Computer Science 2025-05-20 Mykyta Mudryi , Markiyan Chaklosh , Grzegorz Wójcik

Modern AI agents execute real-world side effects through tool calls such as file operations, shell commands, HTTP requests, and database queries. A single unsafe action, including accidental deletion, credential exposure, or data…

Artificial Intelligence · Computer Science 2026-05-07 Chenglin Yang