Recently, I saw someone in the square promoting cheap black U, and I need to clarify this matter to prevent more people from being scammed.

First, let's clarify what black U actually is. USDT is a stablecoin issued by Tether, normally pegged 1:1 with the US dollar. But black U is different; it usually refers to USDT obtained through illegal means such as money laundering, hacking, or traded on black markets in certain regions.

The key question is, will Tether mark black U addresses? The answer is yes. Once an address is blacklisted, the USDT in that address will be completely frozen, unable to be transferred out or used in transactions. This is the most dangerous aspect of black U.

Some might think, "I'll quickly transfer the black U to an exchange before it gets frozen." Do not entertain this idea. If you transfer black U to an exchange before being marked, and it’s discovered later, the exchange will directly freeze your account and funds. Major exchanges are compliant and have systems to detect transactions from blacklisted addresses. When the police’s investigation letter arrives, all your information will be exposed. Every transfer on the blockchain is recorded, and even a single black U can be traced to its final destination, leaving no blind spots.

I advise everyone not to try to buy black U cheaply on small exchanges or small altcoin trading platforms, because even if you manage to buy it, there’s nowhere to sell it. Instead of messing around with these crooked methods, it’s better to hold mainstream assets steadily. For example, currently BNB is around $656, steadily appreciating—that’s the right way. Holding good assets long-term is far more profitable than risking legal issues by dealing with black U.