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~ similar to 2604.11752v1· 20 results

cs.CRRecentApr 13, 2026

Short Message Service (SMS) Phishing Attacks and Defenses: A Systematic Review

Mir Mehedi A. Pritom, Seyed Mohammad Sanjari, Maraz Mia, Ashfak Md Shibli +3 more

This systematic review analyzes the current state of SMS phishing (smishing) attacks and defenses, organizing existing research into four pillars to identify gaps and propose future mitigation strateg…

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cs.CRRecentApr 19, 2026

GuardPhish: Securing Open-Source LLMs from Phishing Abuse

Rina Mishra, Gaurav Varshney, Doddipatla Sesha Sahithi

The paper introduces GuardPhish, a large-scale dataset and evaluation framework, demonstrating that even high-performing open-source LLMs can generate actionable phishing content despite accurate inte…

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cs.CRRecentMar 28, 2026

Context-Aware Phishing Email Detection Using Machine Learning and NLP

Amitabh Chakravorty, Matthew Price, Nelly Elsayed, Zag ElSayed

This paper introduces a machine learning system that detects phishing emails by analyzing contextual features from the entire email body content, achieving 95.41% accuracy using Logistic Regression.

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cs.CRcs.AIRecentApr 8, 2026

SkillSieve: A Hierarchical Triage Framework for Detecting Malicious AI Agent Skills

Yinghan Hou, Zongyou Yang, Zaihu Pang, Xiujun Ma

SkillSieve introduces a three-layer hierarchical framework to detect malicious AI agent skills, achieving high F1 scores (0.920) on a large-scale benchmark while maintaining low operational costs.

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cs.CRcs.CERecentApr 10, 2026

Conversations Risk Detection LLMs in Financial Agents via Multi-Stage Generative Rollout

Xiaotong Jiang, Jun Wu

The paper proposes FinSec, a novel four-tier security detection framework, to robustly identify complex financial risks and suspicious dialogue patterns in LLM-powered financial agents, achieving stat…

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cs.CRcs.CLRecentMay 30, 2026

"I Strongly Suspect This Website Is a Scam": Benchmarking PII Leakage and Detection without Defense in Autonomous Web Agents

Soham Roy, Sarthakbrata Halder, Arya Bharaty, Vaibhav Bhaskar +4 more

The paper demonstrates that autonomous web agents are highly susceptible to social-engineering attacks, leaking critical PII even when they internally flag a site as suspicious, necessitating output-l…

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cs.CRcs.CLRecentMay 30, 2026

"I Strongly Suspect This Website Is a Scam": Benchmarking PII Leakage and Detection without Defense in Autonomous Web Agents

Soham Roy, Sarthakbrata Halder, Arya Bharaty, Vaibhav Bhaskar +4 more

The paper demonstrates that autonomous web agents are highly susceptible to social-engineering attacks, leaking critical PII even when they internally flag a site as suspicious, necessitating output-l…

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cs.CRcs.AIRecentMay 11, 2026

Threat Modelling using Domain-Adapted Language Models: Empirical Evaluation and Insights

Saba Pourhanifeh, AbdulAziz AbdulGhaffar, Ashraf Matrawy

The paper empirically evaluates domain-adapted and general-purpose LLMs for structured threat modelling (STRIDE on 5G security), finding that domain adaptation and model size do not guarantee reliable…

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cs.CRRecentApr 4, 2026

AttackEval: A Systematic Empirical Study of Prompt Injection Attack Effectiveness Against Large Language Models

Jackson Wang

AttackEval systematically evaluates the effectiveness of 250 prompt injection prompts across ten attack categories, finding that composite and obfuscation attacks are highly effective against current…

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cs.CRcs.AIRecentMar 17, 2026

Towards Unsupervised Adversarial Document Detection in Retrieval Augmented Generation Systems

Patrick Levi

The paper proposes an unsupervised method using multiple statistical indicators to detect adversarial or compromised context documents in Retrieval Augmented Generation (RAG) systems, even without kno…

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cs.CRRecentMay 12, 2026

PhishSigma++: Malicious Email Detection with Typed Entity Relations

Shang Shang, Ruiqi Wang, Ruijie Qi, Hao Li +3 more

PhishSigma++ is a novel entity-relation-based detector that improves malicious email detection by focusing on invariant functional relationships between typed entities, significantly outperforming tex…

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cs.CRRecentMay 11, 2026

Context-Aware Spear Phishing: Generative AI-Enabled Attacks Against Individuals via Public Social Media Data

Elham Pourabbas Vafa, Sayak Saha Roy, Shirin Nilizadeh

The paper demonstrates that generative AI can automate and scale highly personalized, context-aware spear-phishing attacks using only public social media data, resulting in messages that are significa…

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cs.CRcs.AIRecentMar 30, 2026

CivicShield: A Cross-Domain Defense-in-Depth Framework for Securing Government-Facing AI Chatbots Against Multi-Turn Adversarial Attacks

KrishnaSaiReddy Patil

CivicShield introduces a novel, seven-layered defense-in-depth framework that significantly enhances the security of government-facing AI chatbots against sophisticated multi-turn adversarial attacks.

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cs.CRcs.AIRecentApr 30, 2026

Latent Adversarial Detection: Adaptive Probing of LLM Activations for Multi-Turn Attack Detection

Prashant Kulkarni

The paper introduces 'adversarial restlessness,' an activation-level signature in LLM residual streams, to detect multi-turn prompt injection attacks with high accuracy.

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cs.CRcs.LGRecentMay 17, 2026

Filter-then-Verify: A Multiphase GNN and ModernBERT Framework for Social Engineering Detection in Email Networks

Barsat Khadka, Prasant Koirala, Kshitiz Neupane, Nick Rahimi

The paper proposes a two-stage filter-then-verify framework combining GNNs and ModernBERT to accurately detect complex social engineering attacks in email networks by analyzing both structural pattern…

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cs.CLcs.AIcs.CRRecentMay 7, 2026

One Turn Too Late: Response-Aware Defense Against Hidden Malicious Intent in Multi-Turn Dialogue

Xinjie Shen, Rongzhe Wei, Peizhi Niu, Haoyu Wang +5 more

The paper introduces TurnGate, a response-aware defense mechanism that detects the earliest turn in a multi-turn dialogue where the accumulated interaction enables a harmful action, significantly impr…

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cs.CRRecentMay 18, 2026

Explainable Machine Learning for Phishing Detection on Heterogeneous Datasets with MCP-Enabled Deployment

Nikhil Kumar Dora, Sumit Kumar Tetarave, Rishikesh Sahay, Madhusudan Singh +1 more

This paper develops an explainable and deployable machine learning system for highly accurate phishing detection across diverse, heterogeneous datasets, achieving up to 99.78% accuracy using transform…

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cs.CLcs.LGRecentJun 1, 2026

Investigating and Alleviating Harm Amplification in LLM Interactions

Ruohao Guo, Wei Xu, Alan Ritter

This paper introduces HarmAmp, a new benchmark for multi-turn harm amplification, and proposes TrajSafe, a proactive monitoring system that significantly reduces harmfulness in LLM interactions while…

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cs.CRcs.AIRecentApr 29, 2026

Tatemae: Detecting Alignment Faking via Tool Selection in LLMs

Matteo Leonesi, Francesco Belardinelli, Flavio Corradini, Marco Piangerelli

The paper proposes detecting 'alignment faking' (AF)—where LLMs revert to unsafe behavior when unmonitored—by analyzing observable tool selection patterns, finding that detection rates vary significan…

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cs.CRcs.AIRecentMar 17, 2026

Security Assessment and Mitigation Strategies for Large Language Models: A Comprehensive Defensive Framework

Taiwo Onitiju, Iman Vakilinia

The paper establishes a standardized security assessment framework and develops a multi-layered defensive system, demonstrating that systematic testing and external defenses are crucial for safe LLM d…

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