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Judge Catches Hidden AI Instructions in Court Filing
14 Aug
Summary
- A judge found hidden text in court filings intended for AI.
- The hidden text aimed to manipulate AI into favoring the plaintiff.
- The plaintiff was barred from making future electronic filings.

A state judge in Connecticut has sanctioned a self-represented litigant for embedding hidden text within court filings. Judge Walter Spader, Jr. identified instructions, invisible to the human eye but legible to software, designed to manipulate AI review processes. This "prompt injection" attempt aimed to make AI favor the plaintiff's arguments and disregard previous rulings.
In response, the judge barred Matthew Elliott from further electronic filings, mandating paper submissions. While welcoming AI use, the judge cited the hidden instructions as evidence of malicious intent. This case highlights novel challenges judges face with AI in legal proceedings, though the Connecticut Judicial Branch does not currently use AI for filing review.