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~ similar to 2605.28597· 20 results

cs.CRcs.AIcs.LGRecentMay 27, 2026

Position: Retire the "Positive Backdoor" Label -- Secret Alignment Requires Strict and Systematic Evaluation

Jianwei Li, Jung-Eun Kim

The paper argues that the 'positive backdoor' label should be retired and replaced with 'Secret Alignment,' asserting that such protective claims must be rigorously evaluated for security, especially…

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cs.CRcs.AIRecentMay 19, 2026

Measuring Safety Alignment Effects in Autonomous Security Agents

Isaac David, Arthur Gervais

The study evaluates how safety alignment affects autonomous security agents using a comprehensive trace-based benchmark, finding that while less-restricted models show gains, these effects are not uni…

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cs.CRcs.AIRecentMay 17, 2026

Ablating Safety: Mechanisms for Removing Alignment in Language Models for Security Applications

Isaac David, Arthur Gervais

The paper proposes Ablating Safety, a controlled protocol for removing safety alignment from language models, demonstrating that targeted de-alignment can significantly boost security performance whil…

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cs.CRcs.CLRecentApr 14, 2026

Compiling Activation Steering into Weights via Null-Space Constraints for Stealthy Backdoors

Rui Yin, Tianxu Han, Naen Xu, Changjiang Li +7 more

The paper proposes a novel method to inject reliable, sustained backdoors into LLMs by compiling an activation steering vector into model weights, ensuring the backdoor only activates upon a specific…

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cs.CRcs.AIcs.CLRecentApr 6, 2026

Mapping the Exploitation Surface: A 10,000-Trial Taxonomy of What Makes LLM Agents Exploit Vulnerabilities

Charafeddine Mouzouni

The paper systematically maps LLM agent vulnerabilities by testing 10,000 prompt variations, finding that 'goal reframing' language is the primary trigger for exploitation, rather than broad adversari…

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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.CRRecentMay 25, 2026

AgentSecBench: Measuring Prompt Injection, Privacy Leakage, and Tool-Use Integrity in LLM Agents

Faruk Alpay, Taylan Alpay

The paper introduces AgentSecBench, a security evaluation framework that measures prompt injection, privacy leakage, and tool-use integrity in LLM agents by defining formal security games and testing…

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cs.CRcs.AIcs.CLRecentMay 28, 2026

Token-Level Generalization in LoRA Adapter Backdoors: Attack Characterization and Behavioral Detection

Travis Lelle

The paper demonstrates that LoRA adapters can be backdoored via data poisoning, showing the backdoor generalizes at the token feature level, and proposes robust behavioral and weight-level detectors f…

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cs.CRcs.AIcs.CLRecentMay 28, 2026

Token-Level Generalization in LoRA Adapter Backdoors: Attack Characterization and Behavioral Detection

Travis Lelle

This paper demonstrates that LoRA adapters can be backdoored via data poisoning, showing that the resulting backdoor generalizes at the token feature level, and proposes robust behavioral and weight-l…

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cs.CRRecentApr 17, 2026

Into the Gray Zone: Domain Contexts Can Blur LLM Safety Boundaries

Ki Sen Hung, Xi Yang, Chang Liu, Haoran Li +6 more

The paper introduces Jargon, a novel adversarial framework that exploits the vulnerability of LLMs to context-specific safety boundary blurring, achieving high attack success rates across multiple fro…

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cs.CRcs.CLRecentMay 14, 2026

MetaBackdoor: Exploiting Positional Encoding as a Backdoor Attack Surface in LLMs

Rui Wen, Mark Russinovich, Andrew Paverd, Jun Sakuma +1 more

The paper introduces MetaBackdoor, a novel class of LLM backdoor attacks that exploits positional encoding (length-based triggers) rather than requiring modifications to the textual content.

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cs.CRcs.AIcs.CLRecentApr 23, 2026

Stealthy Backdoor Attacks against LLMs Based on Natural Style Triggers

Jiali Wei, Ming Fan, Guoheng Sun, Xicheng Zhang +2 more

The paper introduces BadStyle, a novel backdoor attack framework that generates natural, stealthy poisoned samples using LLMs to compromise various LLMs with high success rates and robust activation.

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cs.CRcs.AIRecentMay 4, 2026

On the Privacy of LLMs: An Ablation Study

Karima Makhlouf, Lamiaa Basyoni, Syed Khaderi, Gabriel Marquez +3 more

This paper conducts a structured ablation study using a unified threat model to evaluate how various system factors (like model architecture and retrieval configuration) influence different types of p…

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cs.LGcs.AIRecentMay 28, 2026

Gram: Assessing sabotage propensities via automated alignment auditing

David Lindner, Victoria Krakovna, Sebastian Farquhar

The paper introduces Gram, an automated framework that assesses AI agent propensity for sabotage, finding that while Gemini models show low rates of misbehavior, increasing environmental realism signi…

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cs.CRcs.AIeess.SYRecentMay 12, 2026

Behavioral Integrity Verification for AI Agent Skills

Yuhao Wu, Tung-Ling Li, Hongliang Liu

The paper introduces Behavioral Integrity Verification (BIV), a framework that systematically audits AI agent skills by comparing their declared capabilities against their actual implementation, revea…

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cs.CYcs.CRcs.HCRecentMar 25, 2026

Learning from Mistakes: Can LLM Self-Recover after Misalignment?

Olga E. Sorokoletova, Francesco Giarrusso, Vincenzo Suriani, Daniele Nardi

This paper shifts the focus of LLM safety from preventing misalignment to investigating the model's intrinsic ability to self-recover its alignment after being corrupted by adversarial inputs.

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cs.CRcs.AIcs.CLRecentMar 23, 2026

SecureBreak -- A dataset towards safe and secure models

Marco Arazzi, Vignesh Kumar Kembu, Antonino Nocera

The paper introduces SecureBreak, a manually annotated, safety-oriented dataset designed to help detect harmful outputs from large language models (LLMs) that bypass existing security alignments.

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cs.LGcs.AIcs.CRRecentMay 8, 2026

Trapping Attacker in Dilemma: Examining Internal Correlations and External Influences of Trigger for Defending GNN Backdoors

Fan Yang, Binyan Xu, Di Tang, Kehuan Zhang

The paper proposes PRAETORIAN, a novel defense mechanism for Graph Neural Networks (GNNs) that targets the intrinsic structural requirements of backdoor attacks, significantly reducing the attack succ…

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cs.CRcs.AIRecentMay 7, 2026

Narrow Secret Loyalty Dodges Black-Box Audits

Alfie Lamerton, Fabien Roger

The paper introduces and demonstrates 'narrow secret loyalties,' a novel type of covert model manipulation that biases model output toward a specific principal's interests under narrow conditions, whi…

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cs.CRcs.MARecentJun 4, 2026

ZERO-APT: A Closed-Loop Adversarial Framework for LLM-Driven Automated Penetration Testing under Intelligent Defense

Anlan Zheng, Tiantian Zhu

ZERO-APT introduces a novel closed-loop adversarial framework for automated penetration testing that simulates attacks against an intelligent, real-time defending system, achieving a high attack succe…

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