Recently, some users reported an absurd incident while making on-chain transfers:
Clearly, they copied the correct wallet address, and after pasting it, they noticed no anomalies. However, after the transfer was completed, the other party still had not received the funds. After repeatedly checking, they discovered that the address they had just pasted was not the one they copied. Even scarier is that this fake address looks almost identical to the real address.
Many users are incredulous when hearing about this situation for the first time: “The address can change by itself?”
In fact, this type of attack has existed in the crypto industry for many years, and it has a name: Clipboard Hijacking.
In-Depth Analysis: How Does It Work?
This scam actually consists of two cunning steps:
Step 1: Lurking and "listening" to your copy actions
Your computer, mobile phone, or browser may have inadvertently downloaded malicious plugins, pirated software, or counterfeit apps. These viruses don't usually steal passwords or crash your system; they have one sole task: to keep an eye on your system clipboard. As soon as they detect that you have copied a string that looks very much like a “cryptocurrency address,” they will quietly replace it with the hacker's address within a millionth of a second.
Step 2: The heartless "cloning technique" (high-fidelity address)
Many novices will ask: “If the address changes, can't I tell?” The cleverest part of the scam lies here. They know that when people make transfers, they only like to check the first few and the last few digits. So hackers will use high-performance computers to pre-generate massive amounts of addresses (known as address collision). When you copy the address, the virus will instantly match a “high-fidelity address” in the database that has the same beginning and end as yours, only differing in the middle, and throw it into your clipboard.
💡 Responding to the Threat: How to Prevent the "Shadow Thief"?
Because this virus directly alters your computer/mobile locally, the blockchain network cannot recognize it (it only recognizes the address you signed last). Therefore, the only defense for protecting your wallet is your own verification habits!
Quickly memorize this “anti-tampering strategy”:
1. Don’t only look at the beginning and end of the address Next time you check an address, be sure not to only look at the first 4 and last 4 digits. Always verify the key information character by character after pasting. Even if it takes an extra 3 seconds, you can spot the scammer's disguise at a glance.
2. Always use "small amounts for testing" before large transfers Planning to transfer 1000 USDT? First, transfer 1 USDT. After confirming that the other party has indeed received this test amount, then transfer the rest.
3. Make good use of "address book" and QR codes Exchanges and wallets have “address book” and “QR code” functionalities. QR codes directly carry the complete address data, which can be generated by scanning, making it a shorter path with lower risk compared to “copy & paste.”
4. Be wary of unknown software and plugins How did this virus get into your phone or computer? Usually, it's because of using: special edition browsers downloaded from unofficial channels, unofficial language packs, cracked software, or installation packages from unknown sources. Quickly check what unclean software you have downloaded recently, delete what needs to be deleted, or use reliable antivirus software for a full system cleanup!
In the world of blockchain, there is “no remedy for regret,” once a transfer is sent, even divine beings cannot retrieve it.
The scammer is not using high-end hacking technology; they exploit our blind spots of wanting to “save time, act quickly, and be careless.” Next time you make a transfer, remind yourself: “Did I verify the characters in the middle?”
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