Noroboto: Lying Fonts and Mitigation in Rust | Hacker News

Hacker News commenters discussed a deceptive document-rendering attack against LLM contract review.

The trick uses custom fonts, white text, Unicode, and ligatures so humans see one version while the model reads another.

Participants debated whether such hidden-text tactics could create legal risk or invalidate the contract.

The discussion also covered mitigations for automated review systems that may not match what a human actually sees.