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Why Prompt Filters Don't Protect Autonomous Agents

This story is from 2026-10-22. It is preserved in the archive; the latest stories are on the live feed.

Prompt-layer security was built for chatbots. Your agents are not chatbots. For most of the LLM era, "LLM security" meant one thing: prompt injection. The attack was text in, text out. A user tricks the model into ignoring its instructions, and the model says something it shouldn't. Filters that sc…

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  1. 2026-10-22 08:11 · DEV Community — AI
    Why Prompt Filters Don't Protect Autonomous Agents

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