Man hides AI prompts in court filings to sway judge, gets banned from e-filing

Suspecting court of using AI, man injected prompts in filings to try to win case

Man hides AI prompts in court filings to sway judge, gets banned from e-filing

A Connecticut judge has identified what appears to be the first US case of prompt injection in court filings. Plaintiff Matthew Elliott, a pro se litigant, hid text in white, tiny-point type that instructed AI systems to rule in his favor. The judge ruled the tactic a 'serious litigation abuse' and banned Elliott from e-filing, while noting that such attacks may become more common as courts adopt AI.

An argument prompted only to agree with its author is, in the end, dishonest even with its author.

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2026-08-15