Meta's prompt-injection detector caught 1% of real agent attacks. One config change made it 99%. That's the problem.
This story is from 2026-09-29. It is preserved in the archive; the latest stories are on the live feed.
Everyone shipping an AI agent right now bolts on a "prompt-injection detector" — a little classifier that reads the text flowing through the agent and yells if it smells an attack. It's the smoke alarm of the AI stack. So I did the obvious thing nobody seems to have done: I bought 10 of these smoke…
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- 2026-09-29 17:32 · DEV Community — Machine Learning
Meta's prompt-injection detector caught 1% of real agent attacks. One config change made it 99%. That's the problem.