I also recommend ZB.com. Its CEO said that the platform has built a list of black coin addresses, which is updated from time to time. Once the system detects that the black coin address is transferred to the platform, the account will be frozen immediately. Advertisers in the legal currency trading zone can flexibly set the multi-dimensional conditions of the counterparty, such as trading T+1 days to withdraw coins, etc., to prevent black money and black money transfer. In addition, ZB.com has set up a "National One-Key Report" button on its website and app, and users can quickly and conveniently report other customers they think are suspicious.