Recently, a wave of cunning on-chain transfer scams has emerged. The methods seem simple but are hard to defend against. Some users have posted urgent warnings on social platforms of major exchanges, revealing that a victim planned to transfer $50 million USD, but got caught during the "small test" phase.

The story goes like this: To be cautious, the user first transferred 0.01 tokens to the target address as a test. The transaction succeeded, the balance showed normal, and everything checked out. He relaxed, ready to transfer the $50 million USD.

But the problem lies here. The scammers have been monitoring on-chain activities, specifically looking for this "small test" trick. They played a clever move—using technology to generate a fake address that has the same first and last characters as the real address, then transferred a tiny amount of funds into the victim’s actual address.

This created an incoming transaction record in the victim’s wallet history. When he was about to make a large transfer, he habitually copied the address from the most recent transaction record. The issue is that most people only check the first and last few characters of the address, not the entire 42-character address.

As a result, he unintentionally copied the fake address, and the $50 million USD flowed directly into the scammer’s pocket.

The key point for prevention is: don’t be lazy. Always verify the full address for each transfer, or use your wallet’s address book feature to save frequently used addresses. Small tests are a good habit, but don’t let this habit become a vulnerability. On-chain transfers have no undo mechanism—one mistake and you could lose everything.