AdversaRiskQA: An Adversarial Factuality Benchmark for High-Risk Domains

• URL: http://arxiv.org/abs/2601.15511v1
• Date: Wed, 21 Jan 2026 22:47:59 GMT
• Title: AdversaRiskQA: An Adversarial Factuality Benchmark for High-Risk Domains
• Authors: Adam Szelestey, Sofie van Engelen, Tianhao Huang, Justin Snelders, Qintao Zeng, Songgaojun Deng,
• Abstract summary: Hallucination in large language models (LLMs) contributes to spread of misinformation and diminished public trust.<n>We introduce AdversaRiskQA, the first verified and reliable benchmark systematically evaluating adversarial factuality.<n>We evaluate six open- and closed-source LLMs from the Qwen, GPT-OSS, and GPT families, measuring misinformation detection rates.
• Score: 3.721111684544962
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Hallucination in large language models (LLMs) remains an acute concern, contributing to the spread of misinformation and diminished public trust, particularly in high-risk domains. Among hallucination types, factuality is crucial, as it concerns a model's alignment with established world knowledge. Adversarial factuality, defined as the deliberate insertion of misinformation into prompts with varying levels of expressed confidence, tests a model's ability to detect and resist confidently framed falsehoods. Existing work lacks high-quality, domain-specific resources for assessing model robustness under such adversarial conditions, and no prior research has examined the impact of injected misinformation on long-form text factuality. To address this gap, we introduce AdversaRiskQA, the first verified and reliable benchmark systematically evaluating adversarial factuality across Health, Finance, and Law. The benchmark includes two difficulty levels to test LLMs' defensive capabilities across varying knowledge depths. We propose two automated methods for evaluating the adversarial attack success and long-form factuality. We evaluate six open- and closed-source LLMs from the Qwen, GPT-OSS, and GPT families, measuring misinformation detection rates. Long-form factuality is assessed on Qwen3 (30B) under both baseline and adversarial conditions. Results show that after excluding meaningless responses, Qwen3 (80B) achieves the highest average accuracy, while GPT-5 maintains consistently high accuracy. Performance scales non-linearly with model size, varies by domains, and gaps between difficulty levels narrow as models grow. Long-form evaluation reveals no significant correlation between injected misinformation and the model's factual output. AdversaRiskQA provides a valuable benchmark for pinpointing LLM weaknesses and developing more reliable models for high-stakes applications.

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