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Vulnerability of Large Language Models to Prompt Injection in Medical Advice

Vulnerability of Large Language Models to Prompt Injection in Medical Advice

First seen 19 Dec 2025, 23:57 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

A quality improvement study revealed that commercial large language models (LLMs) are significantly vulnerable to prompt injection attacks when providing medical advice. This vulnerability raises concerns about the reliability of LLMs in critical applications such as healthcare. The study utilized a controlled simulation to demonstrate these risks.

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