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NCSC Warns of AI Prompt Injection Vulnerabilities

NCSC Warns of AI Prompt Injection Vulnerabilities

First seen 9 Dec 2025, 07:51 UTC • •

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

The UK’s National Cyber Security Centre (NCSC) has issued warnings about prompt injection attacks targeting generative AI systems. This vulnerability allows attackers to manipulate large language models by inserting harmful instructions into user inputs, creating significant security risks. Users are mistakenly equating these attacks with traditional SQL injection, which could lead to further compromises in IT systems.

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