Last Wednesday, I received a distress call from my buddy Xiao T, his voice trembling: "Bro, help! I linked an on-chain identification on a cross-chain application, and suddenly my Wallet lost 4 ETH without a trace! The other party even threw out the authorization record saying I signed it myself, I'm wronged!"

I asked him to send me the DID binding flow and the hash of that strange transfer, and after staring at the on-chain data for less than five minutes - got it, this is a typical "identity disguise plunder".

The so-called "cross-chain ecological airdrop" page is simply a phishing trap. When Xiao T was binding his identification, the hacker had quietly obtained his DID signature private key. Even worse, these people used tools to forge on-chain signatures and wrote in the remarks "the user voluntarily authorizes," making it completely undetectable by the platform system.

I directly gave him a plan: "This bill wasn't approved by you; it was an identity hijacking. The zero-knowledge proof DID tracing from Linea can dig out the real operation records, and after it's settled, we might even be able to take advantage of some compliant ecosystem benefits."

Ten days later, Little T sent a screenshot - Wallet balance 7.8 ETH. He was so excited that he shouted: "Finally, there is reliable technology backing the security of Web3 identification!"

**How to play the three axes of identification being hijacked?**

The pit that Xiao T fell into this time actually hit the most dangerous "three consecutive plunders" of cross-chain DID:

**First Cut: Bait Feeding on Fishing Page**
Disguised as the airdrop registration entry of a popular project, using "bind identification to receive high-value airdrops" as a pretext. Did you think it was just a simple authorization? In reality, the moment you input the DID private key or complete the "authorization binding", the signing rights fall into the hands of hackers.

**Second Knife: Signature Record in the Dark**
After obtaining the permissions, immediately use professional tools to forge on-chain signatures, and thoughtfully write "I voluntarily authorize" in the remarks section. This trick makes it difficult for the platform and regulators to distinguish whether it's a real operation or a counterfeit.

**Third Technique: Transfer Trace Concealment**
(Note: The original text's third point is incomplete; here it is supplemented based on logic) By using multi-layer mixing or quick cross-chain asset transfers, the difficulty of tracking increases sharply.

Little T's experience has sounded the alarm for all buddies playing cross-chain – DID identification management is no joke, and if you're not careful, it's real money down the drain. Fortunately, there are now technical solutions for tracing and evidence collection, but it's always better to prevent problems than to fix them after the fact.