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cybersecurity

1,032 papers

#artificial intelligence Preprint Oct 2026

Safeguarding LLMs via Model-Agnostic Latent Safety Signals from Dark Knowledge

LLMs have advanced rapidly, raising growing concerns about their safety. Recent work has proposed approaches to detect and defend against attacks including defenses at decoding stage that leverage models'hidden states. However, existing decoding-stage defenses suffer from two limitations. First, they introduce a trade-...

Wonjun Lee, Kyungsik Yang, Gaeun Ji et al. · 0 citations
#natural language process... Preprint Open access Oct 2026

Not What a Child Expressed: Auditing the Sign-to-Text Safety Interface in Child-Facing AI

Automatic sign language translation (SLT) has entered consumer products, turning American Sign Language into English text for dictation, messaging, and queries put to a conversational assistant. Child-facing AI and platform trust-and-safety tooling decide on text, using filters on minor accounts and grooming classifier...

Muhammad Rafiullah Memon, Viet Vo, Wanlun Ma et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

Practical Feasibility of Gradient Inversion Attacks in Federated Learning

Gradient inversion attacks are often presented as a serious privacy threat in federated learning, with recent work reporting increasingly strong reconstructions under favorable experimental settings. However, it remains unclear whether such attacks are feasible in modern, performance-optimized systems deployed in pract...

Viktor Valadi, Lucas Beerens, Mattias {\AA}kesson et al. · 0 citations
#machine learning Preprint Open access Oct 2026

Large Language Models for Cryptocurrency Transaction Analysis: A Bitcoin Case Study

Cryptocurrencies are widely used, yet current methods for analyzing transactions often rely on opaque, black-box models. While these models may achieve high performance, their outputs are usually difficult to interpret and adapt, making it challenging to capture nuanced behavioral patterns. Large language models (LLMs)...

Yuchen Lei, Yuexin Xiang, Rafael Dowsley et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

The Latent Diagnostic Taxonomy: A Framework for Constructing Classifiers and Diagnosing Their Decisions, Applied to Prompt Injection Detection

This paper proposes a framework for constructing a classifier as a safeguard layer, and for developing a complementary diagnostic that identifies which of the classifier's confident decisions can be trusted. This framework, the Latent Diagnostic Taxonomy, consists of (i) constructing a dimensionality-optimized classifi...

Jaturong Kongmanee, Smile Thanapattheerakul · 0 citations
#artificial intelligence Preprint Oct 2026

Secure Speculative Decoding for Large Language Models

Speculative decoding accelerates inference for a large language model (LLM), referred to as the \emph{target model}, by first using a smaller model, referred to as the \emph{draft model}, to generate candidate tokens and then verifying them with the target model for acceptance or rejection. Prior studies primarily focu...

Yi-Chi Zhang, Zhi-Qi Wang, N. Gong et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

RAG-PIBench: A Leakage-Aware Benchmark for Prompt-Injection Detection in Trustworthy RAG Systems

Retrieval-Augmented Generation (RAG) systems are vulnerable to prompt-injection attacks embedded in retrieved content. We introduce RAG-PIBench, a benchmark for RAG-style prompt-injection detection containing 4,876 contextual examples across frozen train, validation, and protected-test splits. Using a leakage-aware con...

Niveen O. Jaffal, Ahmet Yuksel, David Mohaisen · 0 citations
#machine learning Preprint Open access Oct 2026

Surviving the Router: Optimizing Skill Injections for Retrieval and Execution

AI agents increasingly rely on modular third-party "skills" that are dynamically selected by skill routers to execute complex tasks. While recent studies highlight the threat of prompt injections embedded in these skills, existing evaluations often assume settings where the malicious skill is already selected for execu...

Haneen Najjar, Luca Scionis, Haritz Puerto et al. · 0 citations
#machine learning Preprint Open access Oct 2026

Explainable Rule Mining of IPv6 Extension-Header Presence Patterns from Paired-Vantage Captures

IPv6 extension headers (EHs), such as fragmentation, segment routing, and in-situ telemetry, are operationally important yetwidely dropped in transit, and characterising their behaviour from packet captures is a recurring measurement problem. We ask whetheran explainable miner can recover human-readable rules of EH beh...

Priyanka Sinha, Nikolaos Kekatos, Stylianos Basagiannis et al. · 0 citations
#machine learning Preprint Open access Oct 2026

The Model Plants the Trigger: Answer-Side Backdoor Attacks in Multi-Turn Large Language Models

Safety alignment in Large Language Models (LLMs) remains vulnerable to backdoor attacks. Existing LLM backdoors are almost all input-centric: activation depends on explicit trigger patterns in the user input, so modern guardrails are built to sanitize the input space. We challenge this assumption with a novel answer-si...

Yibo Zhang, Tianrong Guan, Liang Lin et al. · 0 citations
#machine learning Preprint Open access Oct 2026

Deep Defence on Wheels: A Dual Intrusion Detection System Architecture for Comprehensive In-Vehicle Network Security

Increasing connectivity to the outside world and the lack of inbuilt security mechanisms have made legacy intra-vehicular networks vulnerable to cyberattacks. Initial research focused on maximising detection accuracy for known and unknown attacks, often using large, full-precision machine learning models. However, embe...

Shashwat Khandelwal, Shanker Shreejith · 0 citations
#machine learning Preprint Open access Oct 2026

Evaluating Behavioral Context for Interpretable IAM Policy Risk Scoring in Cloud Environments

IAM policy analysis typically emphasizes the authorization capabilities encoded in a policy, but security analyst review priority may also depend on the behavioral and environmental context surrounding a policy event. This paper evaluates whether contextual information provides measurable incremental value for interpre...

Yassin Elsharkawy · 0 citations

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Google DeepMind Blog Jul 17, 2026

Introducing Gemini 3.5 Flash Cyber

Google introduces Gemini 3.5 Flash Cyber, a lightweight cybersecurity model to find and patch vulnerabilities.

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