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Retrieval-augmented generation (RAG) extends large language models (LLMs) with external knowledge, but this access path also introduces security risks that existing work often conflates with inherent LLM flaws. We frame secure RAG as…

Cryptography and Security · Computer Science 2026-05-28 Yuming Xu , Mingtao Zhang , Zhuohan Ge , Haoyang Li , Nicole Hu , Yongqi Zhang , Zhiyuan Wen , Jason Chen Zhang , Qing Li , Lei Chen

The widespread deployment of LLM-based agents is likely to introduce a critical privacy threat: malicious agents that proactively engage others in multi-turn interactions to extract sensitive information. However, the evolving nature of…

Cryptography and Security · Computer Science 2026-05-11 Yanzhe Zhang , Diyi Yang

The increasing complexity and scale of the Internet of Things (IoT) have made security a critical concern. This paper presents a novel Large Language Model (LLM)-based framework for comprehensive threat detection and prevention in IoT…

Cryptography and Security · Computer Science 2025-05-14 Yazan Otoum , Arghavan Asad , Amiya Nayak

The prospect of artificial intelligence (AI) competing in the adversarial landscape of cyber security has long been considered one of the most impactful, challenging, and potentially dangerous applications of AI. Here, we demonstrate a new…

Cryptography and Security · Computer Science 2025-02-25 Michael Kouremetis , Marissa Dotter , Alex Byrne , Dan Martin , Ethan Michalak , Gianpaolo Russo , Michael Threet , Guido Zarrella

Advanced Persistent Threats (APTs) have caused significant losses across a wide range of sectors, including the theft of sensitive data and harm to system integrity. As attack techniques grow increasingly sophisticated and stealthy, the…

Cryptography and Security · Computer Science 2025-03-27 Fei Zuo , Junghwan Rhee , Yung Ryn Choe

As Advanced Persistent Threats (APTs) grow increasingly sophisticated, the demand for effective detection methods has intensified. This study addresses the challenge of identifying APT campaign attacks through system event logs. A cascading…

Cryptography and Security · Computer Science 2024-10-31 Yi-Ting Huang , Ying-Ren Guo , Guo-Wei Wong , Meng Chang Chen

Advanced Persistent Threats (APTs) pose critical challenges to modern cybersecurity due to their multi-stage and stealthy nature. While provenance-based detection approaches show promise in capturing causal attack semantics, current threat…

Cryptography and Security · Computer Science 2026-03-11 Wenhao Yan , Ning An , Linxu Li , Bingsheng Bi , Bo Jiang , Zhigang Lu , Baoxu Liu , Junrong Liu , Cong Dong

Despite the growing capabilities of autonomous agents powered by large language models (LLMs), their adoption in high-stakes domains remains limited. A key barrier is security: the inherently nondeterministic behavior of LLM agents defies…

Software Engineering · Computer Science 2026-02-12 Adam AlSayyad , Kelvin Yuxiang Huang , Richik Pal

The integration of Large Language Model (LLM)-based conversational agents into vehicles creates novel security challenges at the intersection of agentic AI, automotive safety, and inter-agent communication. As these intelligent assistants…

Artificial Intelligence · Computer Science 2026-02-06 Lukas Stappen , Ahmet Erkan Turan , Johann Hagerer , Georg Groh

Large language models (LLMs) used across enterprises often use proprietary models and operate on sensitive inputs and data. The wide range of attack vectors identified in prior research - targeting various software and hardware components…

Cryptography and Security · Computer Science 2024-11-21 Sarbartha Banerjee , Prateek Sahu , Mulong Luo , Anjo Vahldiek-Oberwagner , Neeraja J. Yadwadkar , Mohit Tiwari

The growing complexity of cyber threats has rendered static firewalls increasingly ineffective for dynamic, real-time intrusion prevention. This paper proposes a novel AI-driven dynamic firewall optimization framework that leverages deep…

Cryptography and Security · Computer Science 2025-06-09 Taimoor Ahmad

The accelerated development of social media websites has posed intricate security issues in cyberspace, where these sites have increasingly become victims of criminal activities including attempts to intrude into them, abnormal traffic…

Machine Learning · Computer Science 2026-01-07 Aditi Sanjay Agrawal

Technology for security operations centers (SOCs) has a storied history of slow adoption due to concerns about trust and reliability. These concerns are amplified with artificial intelligence, particularly large language models (LLMs),…

Cryptography and Security · Computer Science 2026-04-24 Francis Hahn , Mohd Mamoon , Alexandru G. Bardas , Michael Collins , Daniel Lende , Xinming Ou , S. Raj Rajagopalan

LLMs are increasingly equipped with safety alignment mechanisms, yet recent studies demonstrate that they remain vulnerable to jailbreaking attacks that elicit harmful behaviors without explicit policy violations. While a growing body of…

Cryptography and Security · Computer Science 2026-05-05 Jindong Li , Ying Liu , Yali Fu , Jinjing Zhu , Leyao Wang , Menglin Yang , Rex Ying

Recent AI systems combine large language models with tools, external knowledge via retrieval-augmented generation (RAG), and even autonomous multi-agent decision loops. This agentic AI paradigm greatly expands capabilities - but also vastly…

Cryptography and Security · Computer Science 2026-03-25 Ali Dehghantanha , Sajad Homayoun

Advanced Persistent Threats (APTs) are stealthy customized attacks by intelligent adversaries. This paper deals with the detection of APTs that infiltrate cyber systems and compromise specifically targeted data and/or infrastructures.…

Computer Science and Game Theory · Computer Science 2021-06-29 Shana Moothedath , Dinuka Sahabandu , Joey Allen , Andrew Clark , Linda Bushnell , Wenke Lee , Radha Poovendran

Agentic AI systems powered by large language models (LLMs) and endowed with planning, tool use, memory, and autonomy, are emerging as powerful, flexible platforms for automation. Their ability to autonomously execute tasks across web,…

Artificial Intelligence · Computer Science 2026-04-07 Anshuman Chhabra , Shrestha Datta , Shahriar Kabir Nahin , Prasant Mohapatra

The expansion of Multimodal Large Language Models (MLLMs) and their integration into autonomous agentic workflows has introduced a non-stationary attack surface. Empirical observations indicate that adversaries employ progressive,…

Cryptography and Security · Computer Science 2026-05-20 Doohee You

Large Language Models (LLMs) are widely deployed in diverse real-world settings, yet remain vulnerable to jailbreaking, where prompt-based attacks bypass safety filters. We present THREAT (Targeted Harmful generation via Reframing and…

Cryptography and Security · Computer Science 2026-05-22 Shahnewaz Karim Sakib , Swati Kar , Anindya Bijoy Das

Large Language Model (LLM) agents can automate cybersecurity tasks and can adapt to the evolving cybersecurity landscape without re-engineering. While LLM agents have demonstrated cybersecurity capabilities on Capture-The-Flag (CTF)…