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The Filing Was the Attack Surface: Prompt Injection in a Brazilian Court and What Holds Up in Deployed Agents

A hidden instruction in a labor filing A labor filing submitted to a Brazilian court carried an instruction that no human reader was meant to see. It was set in white text on a white background. It was invisible on the page but still present in the file. ( Tecnoblog ) The text was addressed to the…

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  1. 2026-11-11 04:13 · DEV Community — AI
    The Filing Was the Attack Surface: Prompt Injection in a Brazilian Court and What Holds Up in Deployed Agents

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