Recently, I’ve seen people in the community promoting “black u,” and I think it’s necessary to have a good conversation about this topic so that people don’t fall into traps.

First, let’s talk about what USDT is. USDT is a stablecoin issued by Tether company, and it is pegged 1:1 to the US dollar. But here’s the question: what is “black u”? “Black u” usually refers to USDT obtained through unofficial channels—such as involving money laundering, hacker activity, or other improper ways of acquiring the coins. In some regions, due to regulatory restrictions, “black u” circulates in underground markets.

Here’s a very key point: Tether company will actively mark and freeze “black u” addresses. Once a “black u” address is blacklisted, the USDT in that address will be completely inaccessible. The coins you still hold may remain in your wallet, but they are essentially dead funds—you can’t transfer them or trade them. This is the power of the blacklist.

So, the question is: can “black u” be transferred to exchanges? In theory, it’s possible before it’s marked, but that’s basically a time bomb. The moment an exchange discovers that you deposited “black u,” your account will be frozen immediately, your funds will be frozen, and you may even be reported to the authorities. Because every transaction on the blockchain has a record, a “black u” can be traced to its final destination, and police can also use the exchange to find your real information.

My suggestion is to stay away from “black u.” Some small platforms or underground channels do sell “black u” at a discount, but once you buy it, you don’t have anywhere to get it out. Mainstream exchanges are compliant—their systems automatically detect transactions from blacklisted addresses, so you can’t transfer it in at all. Instead of taking this risk, it’s better to do long-term investing properly: hold high-quality assets and let them grow in value over time—that’s the right path.