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simonwtoday at 12:01 PM4 repliesview on HN

> Malicious instructions hidden in an externally shared document could make Copilot alter drafted or edited documents in Word and propagate the attack to new documents.

Oh no.


Replies

fg137today at 12:23 PM

Mixing instructions and data is never a good idea.

And I thought people understood that.

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fxwintoday at 12:09 PM

something something lethal trifecta

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veganmosfettoday at 12:33 PM

Indeed - but some models are more robust than others. I tried to make Opus-5 execute hidden instructions embedded a picture using steganography. It's very hard to find a reliable payload.

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TeMPOraLtoday at 12:49 PM

Breaking just now:

- Erroneous information left in plain sight in an externally shared document could make Copilot - or any other agentic system, including LLMs and protein-based intelligence, alter drafted or edited documents in Word (or any other program, or with pen and paper) and propagate the errors to new documents.

In other news:

- Many humans still believe in silly superstitions like flat Earth or that code and data are fundamentally distinct, or that control vs. data plane is anything more than a design opinion that doesn't apply to the universe in general.