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Automated log analysis is crucial in modern software-intensive systems for facilitating program comprehension throughout software maintenance and engineering life cycles. Existing methods perform tasks such as log parsing and log anomaly…

Software Engineering · Computer Science 2024-01-29 Yilun Liu , Shimin Tao , Weibin Meng , Jingyu Wang , Wenbing Ma , Yanqing Zhao , Yuhang Chen , Hao Yang , Yanfei Jiang , Xun Chen

Large Language Models (LLM) continue to demonstrate their utility in a variety of emergent capabilities in different fields. An area that could benefit from effective language understanding in cybersecurity is the analysis of log files.…

Networking and Internet Architecture · Computer Science 2023-11-27 Egil Karlsen , Xiao Luo , Nur Zincir-Heywood , Malcolm Heywood

Large Language Models (LLMs) have rapidly become integral to numerous applications in critical domains where reliability is paramount. Despite significant advances in safety frameworks and guardrails, current protective measures exhibit…

Cryptography and Security · Computer Science 2025-04-15 Bibek Upadhayay , Vahid Behzadan , Ph. D

The rapid advancement of large language model (LLM) agents has raised new concerns regarding their safety and security. In this paper, we propose GuardAgent, the first guardrail agent to protect target agents by dynamically checking whether…

Machine Learning · Computer Science 2025-05-30 Zhen Xiang , Linzhi Zheng , Yanjie Li , Junyuan Hong , Qinbin Li , Han Xie , Jiawei Zhang , Zidi Xiong , Chulin Xie , Carl Yang , Dawn Song , Bo Li

Large Language Models (LLMs), which bridge the gap between human language understanding and complex problem-solving, achieve state-of-the-art performance on several NLP tasks, particularly in few-shot and zero-shot settings. Despite the…

Cryptography and Security · Computer Science 2025-01-07 Shuai Zhao , Meihuizi Jia , Zhongliang Guo , Leilei Gan , Xiaoyu Xu , Xiaobao Wu , Jie Fu , Yichao Feng , Fengjun Pan , Luu Anh Tuan

Large Language Models (LLMs) are transforming cybersecurity by enabling intelligent, adaptive, and automated approaches to threat detection, vulnerability assessment, and incident response. With their advanced language understanding and…

Cryptography and Security · Computer Science 2025-07-21 Niveen O. Jaffal , Mohammed Alkhanafseh , David Mohaisen

Cyber attacks are often identified using system and network logs. There have been significant prior works that utilize provenance graphs and ML techniques to detect attacks, specifically advanced persistent threats, which are very difficult…

Cryptography and Security · Computer Science 2023-11-13 Sihat Afnan , Mushtari Sadia , Shahrear Iqbal , Anindya Iqbal

Enterprises are constantly under attack from sophisticated adversaries. These adversaries use a variety of techniques to first gain access to the enterprise, then spread laterally inside its networks, establish persistence, and finally…

Cryptography and Security · Computer Science 2024-06-14 Sumanth Rao

As cyber threats continue to grow in complexity, traditional security mechanisms struggle to keep up. Large language models (LLMs) offer significant potential in cybersecurity due to their advanced capabilities in text processing and…

Computation and Language · Computer Science 2025-11-10 Tiago Dinis , Miguel Correia , Roger Tavares

As smart homes become increasingly prevalent, intelligent models are widely used for tasks such as anomaly detection and behavior prediction. These models are typically trained on static datasets, making them brittle to behavioral drift…

Artificial Intelligence · Computer Science 2025-08-06 Zhiyao Xu , Dan Zhao , Qingsong Zou , Qing Li , Yong Jiang , Yuhang Wang , Jingyu Xiao

Backdoor attacks pose a significant threat to Large Language Models (LLMs), where adversaries can embed hidden triggers to manipulate LLM's outputs. Most existing defense methods, primarily designed for classification tasks, are ineffective…

Cryptography and Security · Computer Science 2025-11-12 Zihan Wang , Rui Zhang , Hongwei Li , Wenshu Fan , Wenbo Jiang , Qingchuan Zhao , Guowen Xu

Software vulnerabilities (SVs) have emerged as a prevalent and critical concern for safety-critical security systems. This has spurred significant advancements in utilizing AI-based methods, including machine learning and deep learning, for…

Software Engineering · Computer Science 2025-10-07 Van Nguyen , Surya Nepal , Tingmin Wu , Xingliang Yuan , Carsten Rudolph

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

Security attacks are rising, as evidenced by the number of reported vulnerabilities. Among them, unknown attacks, including new variants of existing attacks, technical blind spots or previously undiscovered attacks, challenge enduring…

Cryptography and Security · Computer Science 2024-12-17 Kushal Ramkumar , Wanling Cai , John McCarthy , Gavin Doherty , Bashar Nuseibeh , Liliana Pasquale

Prompt injection attacks pose a critical threat to large language models (LLMs), enabling goal hijacking and data leakage. Prompt guard models, though effective in defense, suffer from over-defense -- falsely flagging benign inputs as…

Computation and Language · Computer Science 2025-04-01 Hao Li , Xiaogeng Liu

Large language models increasingly rely on explicit chain-of-thought reasoning to solve complex tasks, yet the safety of the reasoning process itself remains largely unaddressed. Existing work focuses predominantly on content safety (i.e.,…

Artificial Intelligence · Computer Science 2026-05-07 Xunguang Wang , Yuguang Zhou , Qingyue Wang , Zongjie Li , Ruixuan Huang , Zhenlan Ji , Pingchuan Ma , Shuai Wang

The integration of Internet-of-Things and pervasive computing in medical devices have made the modern healthcare system "smart". Today, the function of the healthcare system is not limited to treat the patients only. With the help of…

Cryptography and Security · Computer Science 2019-09-25 AKM Iqtidar Newaz , Amit Kumar Sikder , Mohammad Ashiqur Rahman , A. Selcuk Uluagac

Fake news detection methods based on writing style have achieved remarkable progress. However, as adversaries increasingly imitate the style of authentic news, the effectiveness of such approaches is gradually diminishing. Recent research…

Artificial Intelligence · Computer Science 2025-11-14 Jing He , Han Zhang , Yuanhui Xiao , Wei Guo , Shaowen Yao , Renyang Liu

Web agents have emerged as an effective paradigm for automating interactions with complex web environments, yet remain vulnerable to prompt injection attacks that embed malicious instructions into webpage content to induce unintended…

Cryptography and Security · Computer Science 2026-04-29 Mengyao Du , Han Fang , Haokai Ma , Jiahao Chen , Kai Xu , Quanjun Yin , Ee-Chien Chang

Large language model (LLM)-based multi-agent systems (MAS) have shown strong capabilities in solving complex tasks. As MAS become increasingly autonomous in various safety-critical tasks, detecting malicious agents has become a critical…

Cryptography and Security · Computer Science 2025-12-23 Junjun Pan , Yixin Liu , Rui Miao , Kaize Ding , Yu Zheng , Quoc Viet Hung Nguyen , Alan Wee-Chung Liew , Shirui Pan