Overview
- A pro se litigant, Matthew Elliott, placed nearly invisible white-on-white, 3-point text in late July court filings that instructed any AI reading the documents to produce output favorable to his case.
- A court employee spotted unusual extra spacing, the judge reviewed the concealed text and ruled the filings contained prompt-injection instructions aimed at automated readers.
- Judge Walter Spader Jr. allowed the underlying suit to proceed but revoked Elliott’s electronic-filing privileges and ordered all future submissions on paper as a sanction to deter secret AI-directed messages.
- The court said Connecticut does not use AI to decide filings but warned buried instructions could pollute downstream tools or archived dockets, noting the injections were discovered only when a human inspected the documents.
- Reporters and legal observers say this is the first documented U.S. prompt-injection incident in court filings and expect the case to spur adoption of simple detection tools and clearer rules for AI use in courts.