Person Hides Prompt Injection in Legal Filing Telling AI to Side with Them

404media.co
August 13, 2026
6 min read
44/100
Summary
A Connecticut court filing included hidden instructions designed to manipulate an AI to favor the filer, Matthew Elliott, in his lawsuit against the New York Bariatric Group. The instructions, known as "prompt injections," were embedded in tiny, 3-point white font throughout the document.
Key Takeaways
- A Connecticut court filing included hidden instructions aimed at manipulating AI to produce favorable outcomes for the plaintiff, Matthew Elliott.
- The concealed text was formatted in a nearly invisible font and contained directives for AI systems to align their responses with the plaintiff's claims.
- The court identified the prompt injections due to unusual white space in the documents, prompting a judicial response regarding the integrity of legal filings.
- Judge Walter Spader Jr. emphasized that the manipulation attempt raised serious concerns about the potential misuse of AI in the legal system.
Coverage & discussions
Hacker News · 404media.co
Community discussions
Community Sentiment
Positives
- Some commenters appreciate the cleverness of hiding prompts in legal documents, seeing it as a creative way to circumvent AI reliance on human-readable text.
Concerns
- There's a strong skepticism about the legality and ethicality of using prompt injections in court documents, with many fearing severe repercussions for such actions.
- The idea that judges will appreciate these tactics is met with disbelief, as most believe courts won't take kindly to perceived manipulation.
Related Articles

Judge Learns Both Sides Used AI, Cancels Trial, Kicks Everyone Off the Case
Jun 9, 2026

AI ruling prompts warnings from US lawyers: Your chats could be used against you
Apr 15, 2026

OpenAI faked inability to search training data, hid billions of logs, NYT says
Jul 9, 2026

India's top court angry after junior judge cites fake AI-generated orders
Mar 3, 2026

An AI Agent Published a Hit Piece on Me – More Things Have Happened
Feb 14, 2026