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Graphical User Interface (GUI) agents powered by Large Vision-Language Models (LVLMs) have emerged as a revolutionary approach to automating human-machine interactions, capable of autonomously operating personal devices (e.g., mobile…

Computation and Language · Computer Science 2025-09-25 Ziang Ye , Yang Zhang , Wentao Shi , Xiaoyu You , Fuli Feng , Tat-Seng Chua

A Large Language Model (LLM) powered GUI agent is a specialized autonomous system that performs tasks on the user's behalf according to high-level instructions. It does so by perceiving and interpreting the graphical user interfaces (GUIs)…

Backdoor attacks pose a serious threat to the secure deployment of large language models (LLMs), enabling adversaries to implant hidden behaviors triggered by specific inputs. However, existing methods often rely on manually crafted…

Cryptography and Security · Computer Science 2025-11-24 Yige Li , Zhe Li , Wei Zhao , Nay Myat Min , Hanxun Huang , Xingjun Ma , Jun Sun

The integration of Large Language Models (LLMs) and Multi-modal Large Language Models (MLLMs) into mobile GUI agents has significantly enhanced user efficiency and experience. However, this advancement also introduces potential security…

Cryptography and Security · Computer Science 2025-03-18 Yulong Yang , Xinshan Yang , Shuaidong Li , Chenhao Lin , Zhengyu Zhao , Chao Shen , Tianwei Zhang

Driven by the rapid development of Large Language Models (LLMs), LLM-based agents have been developed to handle various real-world applications, including finance, healthcare, and shopping, etc. It is crucial to ensure the reliability and…

Cryptography and Security · Computer Science 2024-10-30 Wenkai Yang , Xiaohan Bi , Yankai Lin , Sishuo Chen , Jie Zhou , Xu Sun

Large Vision-Language Models (LVLMs) empower autonomous mobile agents, yet their security under realistic mobile deployment constraints remains underexplored. While agents are vulnerable to visual prompt injections, stealthily executing…

Cryptography and Security · Computer Science 2026-04-10 Renhua Ding , Xiao Yang , Zhengwei Fang , Jun Luo , Kun He , Jun Zhu

Despite their growing adoption across domains, large language model (LLM)-powered agents face significant security risks from backdoor attacks during training and fine-tuning. These compromised agents can subsequently be manipulated to…

Cryptography and Security · Computer Science 2025-06-12 Li Changjiang , Liang Jiacheng , Cao Bochuan , Chen Jinghui , Wang Ting

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

The rapid adoption of Large Language Model (LLM) agents and multi-agent systems enables remarkable capabilities in natural language processing and generation. However, these systems introduce security vulnerabilities that extend beyond…

Cryptography and Security · Computer Science 2026-05-12 Matteo Lupinacci , Francesco Aurelio Pironti , Francesco Blefari , Francesco Romeo , Luigi Arena , Angelo Furfaro

With the prosperity of large language models (LLMs), powerful LLM-based intelligent agents have been developed to provide customized services with a set of user-defined tools. State-of-the-art methods for constructing LLM agents adopt…

Computation and Language · Computer Science 2024-06-06 Yifei Wang , Dizhan Xue , Shengjie Zhang , Shengsheng Qian

The rapid adoption of mobile graphical user interface (GUI) agents, which autonomously control applications and operating systems (OS), exposes new system-level attack surfaces. Existing backdoors against web GUI agents and general GenAI…

Cryptography and Security · Computer Science 2026-03-25 Yutao Luo , Haotian Zhu , Shuchao Pang , Zhigang Lu , Tian Dong , Yongbin Zhou , Minhui Xue

Recent years have witnessed a rapid development of mobile GUI agents powered by large language models (LLMs), which can autonomously execute diverse device-control tasks based on natural language instructions. The increasing accuracy of…

Cryptography and Security · Computer Science 2026-04-15 Guohong Liu , Jialei Ye , Jiacheng Liu , Yuanchun Li , Wei Liu , Pengzhi Gao , Jian Luan , Yunxin Liu

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

LLM-based agents have recently attracted significant attention due to their ability to autonomously invoke relevant tools to accomplish complex tasks. However, recent studies have shown that these agents face severe security risks, which…

Cryptography and Security · Computer Science 2026-05-28 Jiaqi Luo , Songyang Peng , Jiarun Dai , Zhile Chen , Zhuoxiang Shen , Geng Hong , Xudong Pan , Yuan Zhang , Min Yang

Graphical user interface (GUI) agents built on multimodal large language models (MLLMs) have recently demonstrated strong decision-making abilities in screen-based interaction tasks. However, they remain highly vulnerable to pop-up-based…

Cryptography and Security · Computer Science 2026-04-08 Zihe Yan , Jiaping Gui , Zhuosheng Zhang , Gongshen Liu

Modern vision-language-model (VLM) based graphical user interface (GUI) agents are expected not only to execute actions accurately but also to respond to user instructions with low latency. While existing research on GUI-agent security…

Cryptography and Security · Computer Science 2026-03-11 Junxian Li , Tu Lan , Haozhen Tan , Yan Meng , Haojin Zhu

Mobile agents powered by vision-language models (VLMs) are increasingly adopted for tasks such as UI automation and camera-based assistance. These agents are typically fine-tuned using small-scale, user-collected data, making them…

Cryptography and Security · Computer Science 2025-09-08 Xuan Wang , Siyuan Liang , Zhe Liu , Yi Yu , Aishan Liu , Yuliang Lu , Xitong Gao , Ee-Chien Chang

As LLM-based agents become increasingly prevalent, backdoors can be implanted into agents through user queries or environment feedback, raising critical concerns regarding safety vulnerabilities. However, backdoor attacks are typically…

Cryptography and Security · Computer Science 2025-10-14 Pengyu Zhu , Zhenhong Zhou , Yuanhe Zhang , Shilinlu Yan , Kun Wang , Sen Su

Large Language Models (LLMs) have been increasingly integrated into computer-use agents, which can autonomously operate tools on a user's computer to accomplish complex tasks. However, due to the inherently unstable and unpredictable nature…

Cryptography and Security · Computer Science 2025-09-10 Haitao Hu , Peng Chen , Yanpeng Zhao , Yuqi Chen

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
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