Exposing the Black U Scoring Trap: Why Smart Investors Also Fall for It

Stablecoins’ anonymity and cross-border features should be advantages of blockchain technology, but they have been exploited by black and gray industry practitioners as tools for money laundering. Among them, USDT, because its value is pegged to fiat currency, has become the preferred laundering tool for black and gray industries, colloquially called “Black U” in the industry. In recent years, as law enforcement agencies have improved their ability to trace crypto funds, some speculators have taken risks by participating in Black U arbitrage, ultimately becoming victims of scams driven by high returns.

The Trap of High Returns: How Pig Butchering Scams Are Precisely Laid Out

A recent Black U scam case perfectly illustrates the typical套路 of such frauds. Victims saw a promotional video about Black U arbitrage online, then visited the corresponding website to participate in online earning. The platform claimed to specialize in USDT money laundering, allowing users to exchange “clean U” for “Black U” at a rate of 1:1.1 to 1.45, with the difference serving as the user’s profit from running the scam.

What seems like a simple arbitrage mechanism, however, hides a trap. Victims first try small amounts, sending 5 USDT and receiving 5.5 USDT, establishing trust; then they send 207 USDT and receive 269 USDT in return. Two successful transactions make the victim relax their guard, leading to a large investment of 1000 USDT—at this point, no more returns are received. When contacting customer service, they are refused refunds with excuses like “IP mismatch during deposit/withdrawal” or “hash mismatch,” and are instead urged to place more orders.

This is the classic pig butchering scam pattern: small initial returns build trust, large investments are exploited, and no returns follow. The scammers create an illusion of real profit margins through early successful trades, inducing victims to increase their investments step by step, ultimately harvesting everything. This design, targeting human greed, often causes even cautious investors to fall into the trap.

On-Chain Evidence: The Truth About Black U Fraudulent Fund Flows

Based on the blockchain addresses provided by victims, security agency Bitrace conducted in-depth on-chain data tracking, revealing shocking results. As of the investigation, the fraud gang had illegally obtained over 870,000 USDT using the same method. Among these, 784 individual addresses transferred funds to the scam accounts, but only 437 addresses received refunds—meaning nearly half of the participants were refused payment after their first “arbitrage,” with most investing large sums and ending up empty-handed.

From the fund flow perspective, these Black U schemes are backed by a complete gray industry ecosystem. The transaction fees earned by the fraud gang come from online gambling platforms, which are common among black and gray industry groups. Due to lack of compliance mechanisms, large amounts of illicit funds flow through these platforms, effectively turning them into “mixing” platforms. Once scammers obtain the funds, they immediately conduct laundering transfers, with centralized exchanges being the primary destinations—this also explains why regulation of Black U is becoming stricter.

The Legal Consequences of Willful Violation

Many think participating in Black U transactions is just a financial loss, but they may be violating criminal law. For example, a real case from 2022 involved defendant Man Miao, who knowingly assisted others in committing crimes via online networks, using personal bank cards for payment settlement totaling over 1.32 million RMB. He was ultimately sentenced to six months in prison, fined 10,000 RMB, and had illegal gains confiscated.

This case highlights a key issue: Knowing that Black U involves money laundering and still participating in transactions and laundering can constitute “helping information network crime activities,” leading to criminal penalties. Not all online earning schemes are profitable; some can land you in jail.

Investor Prevention Guide: How to Avoid Black U Traps

How can investors protect themselves from such Black U scams? First, recognize that any quick arbitrage promising high returns is suspicious. Traditional arbitrage opportunities have long been exhausted; any “new opportunity” that suddenly appears is often a new trap.

Second, watch out for key scam signals: small initial high returns, emphasis on quick profits, continuous investment requests, and urgency to prompt decisions. These are standard phrases in pig butchering scams.

Finally, and most importantly, do not let greed lead you into Black U laundering activities. Instead of risking legal trouble for quick gains, it’s better to resist the temptation altogether—fighting against anti-money laundering systems is a losing battle, as countless cases have shown.

Participating in speculative trading itself isn’t wrong, but assessing risks reasonably, understanding common scams, and knowing relevant laws are the smarter ways to invest. Black U is not an investment tool; it’s a seemingly profitable but actually treacherous trap filled with hidden dangers.