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Related papers: Clouding the Mirror: Stealthy Prompt Injection Att…

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In the realm of cybersecurity, phishing stands as a prevalent cyber attack, where attackers employ various tactics to deceive users into gathering their sensitive information, potentially leading to identity theft or financial gain.…

Cryptography and Security · Computer Science 2025-09-11 Aditya Kulkarni , Vivek Balachandran , Tamal Das

When answering user queries, LLMs often retrieve knowledge from external sources stored in retrieval-augmented generation (RAG) databases. These are often populated from unvetted sources, e.g. the open web, and can contain maliciously…

Cryptography and Security · Computer Science 2026-03-27 Hao Wu , Prateek Saxena

The adoption of large language models (LLMs) in many applications, from customer service chat bots and software development assistants to more capable agentic systems necessitates research into how to secure these systems. Attacks like…

Cryptography and Security · Computer Science 2024-12-03 Erick Galinkin , Martin Sablotny

Phishing emails pose a persistent and increasingly sophisticated threat, undermining email security through deceptive tactics designed to exploit both semantic and structural vulnerabilities. Traditional detection methods, often based on…

Cryptography and Security · Computer Science 2025-09-26 Ibrahim Altan , Abdulla Bachir , Yousuf Parbhulkar , Abdul Muksith Rizvi , Moshiur Farazi

In this paper, we uncover the essential features of websites that allow intelligent models to distinguish between phishing and legitimate sites. Phishing websites are those that are made with a similar user interface and a near similar…

Social and Information Networks · Computer Science 2022-05-09 Arash Negahdari Kia , Finbarr Murphy , Zahra Dehghani Mohammadabadi , Parisa Shamsi

Traditional phishing detection often overlooks psychological manipulation. This study investigates using Large Language Model (LLM) In-Context Learning (ICL) for fine-grained classification of phishing emails based on a taxonomy of 40…

Cryptography and Security · Computer Science 2025-07-01 Antony Dalmiere , Guillaume Auriol , Vincent Nicomette , Pascal Marchand

Large language models (LLMs) are popular for high-quality text generation but can produce harmful content, even when aligned with human values through reinforcement learning. Adversarial prompts can bypass their safety measures. We propose…

Computation and Language · Computer Science 2024-05-03 Mansi Phute , Alec Helbling , Matthew Hull , ShengYun Peng , Sebastian Szyller , Cory Cornelius , Duen Horng Chau

Phishing is a critical cyber threat, exploiting deceptive tactics to compromise victims and cause significant financial losses. While reference-based phishing detectors (RBPDs) have achieved notable advancements in detection accuracy, their…

Cryptography and Security · Computer Science 2025-02-17 Yuexin Li , Hiok Kuek Tan , Qiaoran Meng , Mei Lin Lock , Tri Cao , Shumin Deng , Nay Oo , Hoon Wei Lim , Bryan Hooi

With the growth in digital transformation and Internet usage, the Social Engineering techniques such as Phishing have become a major concern for the users and the organizations. Phishing attacks involve deceptive techniques to trick users…

Cryptography and Security · Computer Science 2026-05-19 Nikhil Kumar Dora , Sumit Kumar Tetarave , Rishikesh Sahay , Madhusudan Singh , Xiaoqing Li

Command injection vulnerabilities are a significant security threat in dynamic languages like Python, particularly in widely used open-source projects where security issues can have extensive impact. With the proven effectiveness of Large…

Software Engineering · Computer Science 2025-05-22 Yuxuan Wang , Jingshu Chen , Qingyang Wang

LLM-integrated applications and agents are vulnerable to prompt injection attacks, where adversaries embed malicious instructions within seemingly benign input data to manipulate the LLM's intended behavior. Recent defenses based on…

Cryptography and Security · Computer Science 2025-12-09 Sarthak Choudhary , Divyam Anshumaan , Nils Palumbo , Somesh Jha

Large language models (LLMs) deployed behind APIs and retrieval-augmented generation (RAG) stacks are vulnerable to prompt injection attacks that may override system policies, subvert intended behavior, and induce unsafe outputs. Existing…

Cryptography and Security · Computer Science 2026-03-20 Md Takrim Ul Alam , Akif Islam , Mohd Ruhul Ameen , Abu Saleh Musa Miah , Jungpil Shin

While effective backdoor detection and inversion schemes have been developed for AIs used e.g. for images, there are challenges in "porting" these methods to LLMs. First, the LLM input space is discrete, which precludes gradient-based…

Machine Learning · Computer Science 2025-09-22 Zhengxing Li , Guangmingmei Yang , Jayaram Raghuram , David J. Miller , George Kesidis

When large language model (LLM) agents are increasingly deployed to automate tasks and interact with untrusted external data, prompt injection emerges as a significant security threat. By injecting malicious instructions into the data that…

Cryptography and Security · Computer Science 2026-02-05 Yizhu Wang , Sizhe Chen , Raghad Alkhudair , Basel Alomair , David Wagner

Existing Hardware Trojans (HT) detection methods face several critical limitations: logic testing struggles with scalability and coverage for large designs, side-channel analysis requires golden reference chips, and formal verification…

Cryptography and Security · Computer Science 2024-12-11 Md Omar Faruque , Peter Jamieson , Ahmad Patooghy , Abdel-Hameed A. Badawy

Prompt injection attacks exploit vulnerabilities in large language models (LLMs) to manipulate the model into unintended actions or generate malicious content. As LLM integrated applications gain wider adoption, they face growing…

Cryptography and Security · Computer Science 2024-01-03 Daniel Wankit Yip , Aysan Esmradi , Chun Fai Chan

In this research, we aim to explore the potential of natural language models (NLMs) such as GPT-3 and GPT-2 to generate effective phishing emails. Phishing emails are fraudulent messages that aim to trick individuals into revealing…

Computation and Language · Computer Science 2023-01-03 Rabimba Karanjai

User ignorance towards the use of communication services like Instant Messengers, emails, websites, social networks etc. is becoming the biggest advantage for phishers. It is required to create technical awareness in users by educating them…

Cryptography and Security · Computer Science 2014-12-10 Mohammad S. Qaseem , A. Govardhan

Phishing email detection faces significant challenges due to evolving adversarial tactics and heterogeneous attack patterns. Traditional approaches, such as rule-based filters and denylists, often struggle to keep pace, leading to missed…

Cryptography and Security · Computer Science 2026-05-26 Yinuo Xue , Eric Spero , Meng Wai Woo , Wei Gao , Giovanni Russello

The integration of large language models with external content has enabled applications such as Microsoft Copilot but also introduced vulnerabilities to indirect prompt injection attacks. In these attacks, malicious instructions embedded…

Computation and Language · Computer Science 2025-01-28 Jingwei Yi , Yueqi Xie , Bin Zhu , Emre Kiciman , Guangzhong Sun , Xing Xie , Fangzhao Wu