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cybersecurity

1,407 papers

#artificial intelligence Preprint Oct 2026

Reasoning Models Are Accurate but Unsound on Identification

CERTID uses the sound and complete causal identification algorithm ID to certify whether an effect is identifiable from a given graph and query, and verifies returned formulas against structural causal models whose interventional distributions are known exactly.

Arman Behnam, Bing-Hui Wang · 0 citations
#artificial intelligence Preprint Oct 2026

Frequency Is Not Sensitivity Identifying Safety-Sensitive Experts in Sparse MoE LLM

Suppressing a small set of routed experts can weaken the safety behavior of a sparse Mixture-of-Experts (MoE) language model without retraining. Which experts to suppress is therefore a security question, and the usual answer is activation frequency, but frequency measures use, not influence. We test an alternative: ro...

Md Nurul Absar Siddiky, Liuwan Zhu, Yi Dong · 0 citations
#artificial intelligence Preprint Oct 2026

Fast Models, Slow Evidence: A Paired and Self-Audited Evaluation of System-1 Decision Models for LLM Agent Harnesses

Agent harnesses make many small, typed decisions per task: which model to call, which tool to use, whether retrieved text is relevant, whether an input carries an injection. System-1 decision models answer such questions in a single forward pass with class probabilities, promising large cost and latency savings over LL...

Jia-Wei Li · 6 citations · ⚡1
#machine learning Conference Open access Sep 2026

Beyond Models: Building Trusted AI in the Age of Autonomous Agents

This presentation introduces the emerging paradigm of multi-agentic AI in cybersecurity, where systems evolve from passive tools to autonomous decision-making entities, and presents the concept of a "lethal trifecta of risks that redefine traditional security boundaries.

Harsh Verma · 0 citations
#natural language process... Preprint Oct 2026

OverAct: Measuring and Mitigating Proactive Over-Authorization in LLM Tool-Calling Agents

LLM agents with tool-calling capabilities can access external services and private user data, but they may retrieve more information than a user's request explicitly requires. We study this behavior in structured tool-calling agents and term it proactive over-authorization. This setting differs from filesystem-level co...

Tao-Lin Zhang, Jiu-Heng Wan, Han-Yu Wang et al. · 0 citations

AuraForge: Scaling Security Supervision for Training Coding Agents

AuraForge is introduced to synthesize and validate executable security tests for training secure coding agents, and it is demonstrated that AuraForge provides more diverse and reliable security supervision to train secure coding agents.

Dan-Qing Wang, Song-Wen Zhao, Harsh Sharma et al. · 0 citations
#natural language process... Preprint Oct 2026

DeBERTa-ConPara: Attack-Aware and Deployment-Realistic Detection of AI-Generated Text

Robust detection of AI-generated text under deployment conditions is challenging: distribution shifts across domains and generators, adversarial perturbations of the input surface, and the absence of target-domain labels for threshold calibration all degrade detectors that perform well in-domain. We present DeBERTa-Con...

Mohamed Mady, Yu-Pei Li, Johannes Reschke et al. · 1 citation · ⚡1
#machine learning Preprint Open access Oct 2026

Rethinking Anonymity Claims in Synthetic Data Generation: A Model-Centric Privacy Attack Perspective

Training generative machine learning models to produce synthetic tabular data has become a popular approach for enhancing privacy in data sharing. As this typically involves processing sensitive personal information, releasing either the trained model or generated synthetic datasets can still pose privacy risks. Yet, r...

Georgi Ganev, Emiliano De Cristofaro · 0 citations
#machine learning Preprint Open access Oct 2026

On Reliability of Membership Inference Vulnerability Evaluation

Membership inference attacks (MIAs) are popular methods for empirically assessing the leakage of sensitive information in the training data through models or statistics learned from the data. The MI vulnerability is often evaluated through a binary classifier that tries to predict whether a particular sample was in the...

Joonas J\"alk\"o, Gauri Pradhan, Ossi R\"ais\"a et al. · 0 citations
#machine learning Preprint Oct 2026

Learnt Attacks on Quantum Key Distribution under Channel Noise and Device Drift

Adaptive eavesdropping is posed here as a constrained Markov decision process in which the attacker selects one circuit per round while the noise level follows an Ornstein--Uhlenbeck process and the abort condition is a budget over each block of rounds.

Marcel Mordarski, Benjamin I. Gräs, A. Shehata et al. · 0 citations
#machine learning Preprint Oct 2026

The Innocent Courier: Covert Exfiltration Through Legitimate LLM Web Fetching

With the increasing capabilities of Large-Language-Models (LLMs) and LLM-based agents, users are increasingly using them to solve everyday problems, such as answering e-mails or providing programming support. Existing work has extensively investigated security and privacy risks, such as prompt injections and the disclo...

Alessandro Pegoraro, Daryan Merx, P. Rieger et al. · 0 citations
#machine learning Preprint Sep 2026

Crossing the Cyber Divide: Sim-to-Sim and Sim-to-Real Transfer for RL Agents

Cyber attack agents are typically trained and evaluated within a single simulator, making it unclear whether learned policies transfer beyond the environments in which they were developed. This limitation hinders both deployment and fair comparison, as cyber simulators differ substantially in their state representation...

Sabrina Saika, Yi-Nuo Du, Aritran Piplai · 0 citations

From tech blogs

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Microsoft Research Blog Nov 3, 2026

Learn the rules: The hacker mindset

Research Manager Mike Walker reflects on a career spanning hacker culture, cybersecurity, and AI, sharing lessons about trust, teamwork, leadership, and why solving difficult problems requires curiosity, judgment, agility—and an understanding of the rules. The post Learn the rules: The hacker mindset appeared first on Microsoft Research.

GPT-Lab Oct 30, 2026

Black October? The Week AI Changed the Cybersecurity Conversation

Critical flaws, compromised release channels and agentic AI threats landed within days of each other in mid-October 2026. Why “Black October” may say more about how well we now find weaknesses than about the attacks themselves. The post Black October? The Week AI Changed the Cybersecurity Conversation appeared first on GPT-Lab.

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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