Be cautious in situations like this: if someone sends you a screenshot of a cold wallet mnemonic phrase via private message, whether they strike up a familiar conversation or say nothing at all, do not trust it. After you download the cold wallet and restore it, it might show that it contains a few hundred or thousand RMB worth of USDT, but without any TRX miner fees included. If you want to transfer the USDT out, you'll need to buy miner fees and send them to this address. Once you do, the funds you transferred will be redirected to another address within seconds. The purpose is to use the USDT to lure you into buying miner fees to send there, and then steal the miner fees you've added. This cold wallet address has already been pre-authorized to aggregate funds. Once a certain amount of TRX is deposited, it triggers the aggregation function, so the miner fees you add disappear in seconds, and you'll never be able to withdraw the USDT. I've known about this scheme for four years and even considered doing it myself. After investigation and careful thought, I concluded that the money made this way isn't worth much, as transferring a hundred USDT only requires about twenty TRX. Four years ago, ten RMB could buy hundreds of TRX, so it was only a few RMB per transaction. I'd have to be crazy to think it was a good idea. Also, if someone pretends to send you the wrong image, meaning to send another but includes a mnemonic phrase screenshot by mistake, don't waste your time. Just block them immediately.