Glossary
MNPI (Material Non-Public Information)
Information that could move a security's price and hasn't been made public.
Material non-public information is any information about a company or security that a reasonable investor would consider important to a trading decision and that has not been disclosed to the market. Handling MNPI improperly, including leaking it into or out of an AI model, can constitute insider trading or a breach of information-barrier obligations.
For AI systems, the risk is that a prompt carries MNPI into a model, or that a model response surfaces it to someone who shouldn't have it. Meilynx detects MNPI inline and can block or warn on it before it crosses the proxy boundary, or mask a response that carries it, with every finding recorded in the audit trail.