It will greatly depend on the specifics, I suspect. An analyst hears something being talked about on a different table in a restaurant by chance is legal. An

It will greatly depend on the specifics, I suspect. An analyst hears something being talked about on a different table in a restaurant by chance is legal. An analyst offering money to a retired nuclear weapons defense contractor in order to sell might… suddenly disappear. In between those two extremes? Ask a lawyer, not the internet.