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Threat Intelligence Report

PuzzleMask: Abusing Plain Prose as a Covert AI Attack Vector

๐Ÿ“… September 12, 2026 ๐Ÿ“ฐ research.checkpoint.com ๐Ÿ” 0 CVE(s) referenced

Attackers can bypass LLM gatekeeper policy checks by embedding malicious instructions in plain English prose, enabling target models with higher reasoning and code execution capabilities to extract and act on the hidden payloads undetected.

unclassified

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