Some bank financial managers will one-sidedly exaggerate the yield of a product when they recommend products or services to investors, and they will not talk about the risks or additional terms. For example, recently the linked-type bank wealth management products are divided into principal-guaranteed floating yield and non-principal-guaranteed floating yield. Risks and returns are always directly proportional. If they only promote so-called "expected yield" without reminding the risks, it is a kind of disguised infringement on consumers' right to know.