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The emergence of autonomous Large Language Model (LLM) agents capable of tool usage has introduced new safety risks that go beyond traditional conversational misuse. These agents, empowered to execute external functions, are vulnerable to…

Artificial Intelligence · Computer Science 2025-07-14 Zeyang Sha , Hanling Tian , Zhuoer Xu , Shiwen Cui , Changhua Meng , Weiqiang Wang

Agentic AI systems, specifically LLM-driven agents that plan, invoke tools, maintain persistent memory, and delegate tasks to peer agents via protocols such as MCP and A2A, introduce a threat surface that differs materially from standalone…

Cryptography and Security · Computer Science 2026-05-08 Javad Forough , Marios Kogias , Hamed Haddadi

Large Language Models (LLMs) have exhibited great performance in autonomously calling various tools in external environments, leading to better problem solving and task automation capabilities. However, these external tools also amplify…

Cryptography and Security · Computer Science 2025-09-10 Hongfei Xia , Hongru Wang , Zeming Liu , Qian Yu , Yuhang Guo , Haifeng Wang

Current safety alignment for Large Language Models (LLMs) implicitly optimizes for a "modal adult user," leaving models vulnerable to distributional shifts in user cognition. We present ChildSafe, a benchmark that quantifies alignment…

Computers and Society · Computer Science 2026-01-21 Abhejay Murali , Saleh Afroogh , Kevin Chen , David Atkinson , Amit Dhurandhar , Junfeng Jiao

What should a developer inspect before deploying an LLM agent: the model, the tool code, the deployment configuration, or all three? In practice, many security failures in agent systems arise not from model weights alone, but from the…

Cryptography and Security · Computer Science 2026-03-25 Haiyue Zhang , Yi Nian , Yue Zhao

The widespread adoption of Large Language Models (LLMs) in critical applications has introduced severe reliability and security risks, as LLMs remain vulnerable to notorious threats such as hallucinations, jailbreak attacks, and backdoor…

Cryptography and Security · Computer Science 2026-04-07 Shide Zhou , Kailong Wang , Ling Shi , Haoyu Wang

The integration of Large Language Models (LLMs) into wearable sensing is creating a new class of mobile applications capable of nuanced human activity understanding. However, the reliability of these systems is critically undermined by…

Cryptography and Security · Computer Science 2025-12-25 Yihan Wang , Huanqi Yang , Shantanu Pal , Weitao Xu

Computer-use agent (CUA) frameworks, powered by large language models (LLMs) or multimodal LLMs (MLLMs), are rapidly maturing as assistants that can perceive context, reason, and act directly within software environments. Among their most…

Cryptography and Security · Computer Science 2025-10-13 Weidi Luo , Qiming Zhang , Tianyu Lu , Xiaogeng Liu , Bin Hu , Hung-Chun Chiu , Siyuan Ma , Yizhe Zhang , Xusheng Xiao , Yinzhi Cao , Zhen Xiang , Chaowei Xiao

Generative AI agents, software systems powered by Large Language Models (LLMs), are emerging as a promising approach to automate cybersecurity tasks. Among the others, penetration testing is a challenging field due to the task complexity…

Cryptography and Security · Computer Science 2024-10-29 Luca Gioacchini , Marco Mellia , Idilio Drago , Alexander Delsanto , Giuseppe Siracusano , Roberto Bifulco

Large language model (LLM) agents execute tasks through multi-step workflows that combine planning, memory, and tool use. While this design enables autonomy, it also expands the attack surface for backdoor threats. Backdoor triggers…

Artificial Intelligence · Computer Science 2026-01-13 Yunhao Feng , Yige Li , Yutao Wu , Yingshui Tan , Yanming Guo , Yifan Ding , Kun Zhai , Xingjun Ma , Yu-Gang Jiang

Large language models (LLMs) have shown strong capabilities in multi-step decision-making, planning and actions, and are increasingly integrated into various real-world applications. It is concerning whether their strong problem-solving…

Cryptography and Security · Computer Science 2026-05-20 Yilin Tang , Yu Wang , Lanlan Qiu , Wenchang Gao , Yunfei Ma , Baicheng Chen , Tianxing He

The effective detection and governance of Large Language Model (LLM) generated content has become increasingly critical due to the growing risk of misuse. Despite the impressive performance of existing detectors, their reliability and…

Computation and Language · Computer Science 2026-05-20 Junchao Wu , Yefeng Liu , Chenyu Zhu , Hao Zhang , Zeyu Wu , Tianqi Shi , Yichao Du , Longyue Wang , Weihua Luo , Jinsong Su , Derek F. Wong

Large Language Model (LLM) agents increasingly act through external tools, making their safety contingent on tool-call workflows rather than text generation alone. While recent benchmarks evaluate agents across diverse environments and risk…

Software Engineering · Computer Science 2026-03-20 Xuan Chen , Lu Yan , Ruqi Zhang , Xiangyu Zhang

We present SENTINEL, a framework for formally evaluating the physical safety of foundation model (FM)-based embodied agents. SENTINEL is the first to provide multi-level safety evaluation across semantic interpretation, plan generation, and…

LLM agents are evolving rapidly, powered by code execution, tools, and the recently introduced agent skills feature. Skills allow users to extend LLM applications with specialized third-party code, knowledge, and instructions. Although this…

Cryptography and Security · Computer Science 2026-02-26 David Schmotz , Luca Beurer-Kellner , Sahar Abdelnabi , Maksym Andriushchenko

The proliferation of Large Language Models (LLMs) poses challenges in detecting and mitigating digital deception, as these models can emulate human conversational patterns and facilitate chat-based social engineering (CSE) attacks. This…

As large language models (LLMs) are increasingly deployed in healthcare, ensuring their safety, particularly within collaborative multi-agent configurations, is paramount. In this paper we introduce MedSentry, a benchmark comprising 5 000…

Multiagent Systems · Computer Science 2025-05-28 Kai Chen , Taihang Zhen , Hewei Wang , Kailai Liu , Xinfeng Li , Jing Huo , Tianpei Yang , Jinfeng Xu , Wei Dong , Yang Gao

The evolution of Large Language Models (LLMs) has resulted in a paradigm shift towards autonomous agents, necessitating robust security against Prompt Injection (PI) vulnerabilities where untrusted inputs hijack agent behaviors. This SoK…

Cryptography and Security · Computer Science 2026-02-12 Peiran Wang , Xinfeng Li , Chong Xiang , Jinghuai Zhang , Ying Li , Lixia Zhang , Xiaofeng Wang , Yuan Tian

The rapid advancement of artificial intelligence (AI) has significantly expanded the attack surface for AI-driven cybersecurity threats, necessitating adaptive defense strategies. This paper introduces CyberSentinel, a unified, single-agent…

Cryptography and Security · Computer Science 2025-02-24 Krti Tallam

We introduce the Cyber Defense Benchmark, a benchmark for measuring how well large language model (LLM) agents perform the core SOC analyst task of threat hunting: given a database of raw Windows event logs with no guided questions or…

Cryptography and Security · Computer Science 2026-04-24 Alankrit Chona , Igor Kozlov , Ambuj Kumar