Diagnosing and Repairing Factual Errors in RAG under Budget Constraints
Soroush Hashemifar, Havva Alizadeh Noughabi, Fattane Zarrinkalam, Ali Dehghantanha
arXiv (preprint) · 2026
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University of Guelph · Canada Cyber Foundry
The Cyber Science Lab conducts cutting-edge research across AI security, autonomous cyber defence, and agri-food security — training the next generation of cybersecurity leaders.
The Cyber Science Lab (CSL) at the University of Guelph advances the science and practice of cybersecurity through rigorous research, open datasets, and hands-on training.
What we do
The Cyber Science Lab brings together researchers across disciplines to tackle the most pressing challenges in cybersecurity.
Advancing machine learning for threat detection, malware analysis, and autonomous defence.
Building self-adaptive systems that detect, reason about, and respond to attacks in real time.
Securing the connected infrastructure behind Canada’s agriculture and food supply.
Publishing malware datasets and tools that accelerate research across the community.
Research

Securing the connected infrastructure behind agriculture and the food supply — from smart farms to processing and distribution.
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A national, multi-disciplinary NSERC CREATE training program developing Cybersecure, Reliable, and Equitable AgFoodTech, connecting Computer Science and Agri-Food across Canada.
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A self-healing AI security framework that autonomously detects, neutralizes, and preemptively defends LLMs against evolving adversarial and data-integrity threats.
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A secure, end-to-end threat-intelligence pipeline turning raw LLM invocation logs into real-time, graph-aware defenses for Canadian security-operations centres.
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LLMs enhanced with Retrieval-Augmented Generation to strengthen monitoring and compliance within Preventative Control Plans in meat processing facilities.
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A Canada Research Chair program advancing cyber threat intelligence for Canada’s critical infrastructure — automated incident response, forensics, and cyber risk quantification against state-sponsored threats.
Learn morePublications
Soroush Hashemifar, Havva Alizadeh Noughabi, Fattane Zarrinkalam, Ali Dehghantanha
arXiv (preprint) · 2026
Read paperParya Abadeh, Martin Lochner, Taha Ansari, Fattane Zarrinkalam
Proceedings of the 2026 ACM/IEEE 7th International Workshop on Engineering and Cybersecurity of Critical Systems (EnCyCriS) · 2026
Read paperMaryam Mozaffari, Abbas Yazdinejad, Ali Dehghantanha
Data in Brief · 2026
Read paperConor Russell, Janos Botschner, Emily Duncan, Ali Dehghantanha, Evan D.G. Fraser
Smart Agricultural Technology · 2025
Read paperYour support funds student researchers, open datasets, and the tools that keep communities and critical infrastructure secure.