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Modern coding agents integrated into IDEs orchestrate powerful tools and high-privilege system access, creating a high-stakes attack surface. Prior work on Indirect Prompt Injection (IPI) is mainly query-specific, requiring particular user…

Cryptography and Security · Computer Science 2026-01-15 Yuchong Xie , Zesen Liu , Mingyu Luo , Zhixiang Zhang , Kaikai Zhang , Yuanyuan Yuan , Zongjie Li , Ping Chen , Shuai Wang , Dongdong She

Deploying large language model (LLM)-driven conversational agents in enterprise settings requires prompts that are simultaneously correct at launch and resilient to the non-deterministic behavioral drift that characterizes production LLM…

Artificial Intelligence · Computer Science 2026-05-18 Keshava Chaitanya , Jahnavi Gundakaram

Large Language Models (LLMs) are changing the way people interact with technology. Tools like ChatGPT and Claude AI are now common in business, research, and everyday life. But with that growth comes new risks, especially prompt-based…

Cryptography and Security · Computer Science 2025-05-27 Austin Howard

Prompt injection attacks pose a critical threat to large language models (LLMs), with prior work focusing on cutting-edge LLM applications like personal copilots. In contrast, simpler LLM applications, such as customer service chatbots, are…

Cryptography and Security · Computer Science 2025-11-11 Yigitcan Kaya , Anton Landerer , Stijn Pletinckx , Michelle Zimmermann , Christopher Kruegel , Giovanni Vigna

Injection detectors deployed to protect LLM agents are calibrated on static, template-based payloads that announce themselves as override directives. We identify a systematic blind spot: when payloads are generated to mimic the domain…

Cryptography and Security · Computer Science 2026-05-22 Aaditya Pai

Large language models (LLMs) are becoming increasingly prevalent in modern software systems, interfacing between the user and the Internet to assist with tasks that require advanced language understanding. To accomplish these tasks, the LLM…

Cryptography and Security · Computer Science 2025-07-04 Sizhe Chen , Arman Zharmagambetov , Saeed Mahloujifar , Kamalika Chaudhuri , David Wagner , Chuan Guo

Large Language Models (LLMs) are increasingly vulnerable to a sophisticated form of adversarial prompting known as camouflaged jailbreaking. This method embeds malicious intent within seemingly benign language to evade existing safety…

Cryptography and Security · Computer Science 2025-09-09 Youjia Zheng , Mohammad Zandsalimy , Shanu Sushmita

Large Language Models (LLMs) have become integral to automated code analysis, enabling tasks such as vulnerability detection and code comprehension. However, their integration introduces novel attack surfaces. In this paper, we identify and…

Cryptography and Security · Computer Science 2025-07-23 Yue Li , Xiao Li , Hao Wu , Yue Zhang , Fengyuan Xu , Xiuzhen Cheng , Sheng Zhong

Autonomous agents powered by Large Language Models (LLMs) acquire external functionalities through third-party skills available in open marketplaces. Adopting these integrations broadens the potential attack surface, prompting a need for…

Cryptography and Security · Computer Science 2026-05-15 Xinyu Liu , Yukai Zhao , Xing Hu , Xin Xia

Jailbreaks have been a central focus of research regarding the safety and reliability of large language models (LLMs), yet the mechanisms underlying these attacks remain poorly understood. While previous studies have predominantly relied on…

Cryptography and Security · Computer Science 2025-11-04 Nathalie Kirch , Constantin Weisser , Severin Field , Helen Yannakoudakis , Stephen Casper

The misuse of large language models (LLMs) has drawn significant attention from the general public and LLM vendors. One particular type of adversarial prompt, known as jailbreak prompt, has emerged as the main attack vector to bypass the…

Cryptography and Security · Computer Science 2024-05-16 Xinyue Shen , Zeyuan Chen , Michael Backes , Yun Shen , Yang Zhang

Defenses against indirect prompt injection (IPI) in tool-using LLM agents share two structural weaknesses. First, they all attempt to prevent attacks rather than detect the compromises that slip through. Second, they have only been…

Cryptography and Security · Computer Science 2026-05-13 Yassin H. Rassul , Tarik A. Rashid

Large Language Model (LLM) agents are increasingly integrated into critical systems, leveraging external tools to interact with the real world. However, this capability exposes them to Indirect Prompt Injection (IPI), where attackers embed…

Cryptography and Security · Computer Science 2026-04-14 Guangyu Gong , Zizhuang Deng

As large language models (LLMs) improve, so do their offensive applications: frontier agents now generate working exploits for under $50 in compute (Heelan, 2026). Defensive incident response (IR) agents must keep pace, but existing…

Artificial Intelligence · Computer Science 2026-02-10 Jarrod Barnes

Web-browsing AI agents are increasingly deployed in enterprise settings under strict whitelists of approved domains, yet adversaries can still influence them by embedding hidden instructions in the HTML pages those domains serve. Existing…

Cryptography and Security · Computer Science 2026-05-13 Chia-Pei , Chen , Kentaroh Toyoda , Anita Lai , Alex Leung

The generalization capabilities of Large Language Models (LLMs) have led to their widespread deployment across various applications. However, this increased adoption has introduced several security threats, notably in the forms of…

Cryptography and Security · Computer Science 2025-08-04 Francesco Panebianco , Stefano Bonfanti , Francesco Trovò , Michele Carminati

The advent of Large Language Models LLMs marks a milestone in Artificial Intelligence, altering how machines comprehend and generate human language. However, LLMs are vulnerable to malicious prompt injection attacks, where crafted inputs…

Computation and Language · Computer Science 2024-10-29 Sahasra Kokkula , Somanathan R , Nandavardhan R , Aashishkumar , G Divya

Large Language Models (LLMs) have transformed human-machine interaction since ChatGPT's 2022 debut, with Retrieval-Augmented Generation (RAG) emerging as a key framework that enhances LLM outputs by integrating external knowledge. However,…

Cryptography and Security · Computer Science 2025-07-08 Alberto Castagnaro , Umberto Salviati , Mauro Conti , Luca Pajola , Simeone Pizzi

Intent detection, a core component of natural language understanding, has considerably evolved as a crucial mechanism in safeguarding large language models (LLMs). While prior work has applied intent detection to enhance LLMs' moderation…

Computation and Language · Computer Science 2025-08-26 Jun Zhuang , Haibo Jin , Ye Zhang , Zhengjian Kang , Wenbin Zhang , Gaby G. Dagher , Haohan Wang

With the proliferation of LLM-integrated applications such as GPT-s, millions are deployed, offering valuable services through proprietary instruction prompts. These systems, however, are prone to prompt extraction attacks through…

Cryptography and Security · Computer Science 2024-10-29 Junlin Wang , Tianyi Yang , Roy Xie , Bhuwan Dhingra