CoinWorld news, according to feedback from community users, the WhalesMarket platform's WLFI over-the-counter trading may have vulnerabilities: Address A first sells tokens to its controlled Address B at a price of 0.01, then Address B sells them to Buyer C at a price of 0.2. B can profit from the price difference, but A subsequently does not deliver the tokens, and C ultimately can only receive a penalty at the price of 0.01.