1. How to intercept phishing authorization
Be wary of any links or QR codes that require authorization to transfer tokens, especially "airdrops" or "welfare activities" outside the trading platform. Manually check the smart contract address and use tools such as Revoke.cash to regularly clean up idle authorizations to avoid malicious contracts lurking for a long time.
2. Buy and sell U to prevent being swapped
Over-the-counter (OTC) transactions adhere to the principle of "three-party verification": check the other party's payment address history through the blockchain browser, use the exchange guarantee service, and require the other party to provide video verification + timestamp screenshots. Large transactions are divided into 3 small test arrivals to prevent address tampering.
3. Staking mining rights control
Before participating in liquidity mining, use Token Sniffer to scan the contract code to confirm that there is no "backdoor function". Set the pledge amount to "single authorization" and reject unlimited authorization requests. If you find that APY (annualized return) has increased abnormally, withdraw your funds immediately to prevent "earth mining running away".
4. Social Engineering Defense Matrix
All private messages from "customer service" or "project party" requesting mnemonics or SMS verification codes will be blocked. The wallet password and exchange password are completely independent to avoid database collision attacks. Enable the anti-phishing code function of the hardware wallet and check whether the device display address is consistent with the screen before trading.
5. On-chain behavioral confusion tactics
Create multiple wallets to implement "fund stratification": use low-authority hot wallets (store ≤10% of assets) for daily transactions, use offline cold wallets for long-term storage, and set up separate "cannon fodder wallets" for participating in high-risk Defi. Regularly change common addresses to interfere with hackers' on-chain behavior analysis.
Core logic: U theft has become a compound threat of phishing, contract loopholes, and social engineering attacks. It is necessary to build a defense system based on the "zero trust" principle and implement dynamic protection from all aspects of authorization, transaction, and storage.
