In the blockchain field, airdrops are activities where project parties distribute tokens for free to attract users and promote the ecosystem. However, there are also many security risks (such as phishing, scams, smart contract vulnerabilities, etc.). Below are security guidelines for participating in blockchain airdrops to help you avoid risks and protect your assets:

1. Preparation: Identify legitimate projects and refuse 'high-risk' airdrops.

1. Verify project authenticity

- Confirm through official channels: Obtain airdrop information via the project’s official website (check if the URL is correct, avoid phishing with 'similar domain names' like 'coinbase.com' and 'coinbasee.com'), and official social media (Twitter, Telegram, Discord, etc., pay attention to verification badges). Be cautious of 'exclusive airdrops' published by unofficial third-party platforms.

- Check project background: Use blockchain explorers (like Etherscan, BscScan) to query the project contract address, token issuance volume, and whether the contract code is open-source. Confirm if the project has a whitepaper, team background, community activity, and compliance.

- Beware of 'no-reason airdrops': Legitimate airdrops are usually tied to user actions (like following, staking, interacting, etc.). Be skeptical of information like 'claim airdrop without any action,' 'airdrop value is extremely high,' or 'limited time urgent'; these may be phishing traps.

2. Refuse requests for sensitive information

- Never disclose private keys/seed phrases: No airdrop will ask users to provide wallet private keys, seed phrases, transaction passwords, or login passwords; such behavior is 100% a scam.

- Carefully authorize personal information: If you need to connect your wallet to participate in an airdrop, ensure the DApp platform is secure (check if the contract address matches the official one). Avoid authorizing high-risk permissions like 'transfer' or 'batch operations'; only authorize necessary functions (like 'read balance').

- Beware of KYC scams: Some scam airdrops may claim 'KYC completion is required to receive the airdrop' and ask for sensitive information like ID cards or bank cards. Legitimate projects' KYC processes are usually on official platforms and only for compliance purposes.

2. Security measures during operation: Protect wallet and interaction safety.

1. Use secure wallets and devices

- Choose mainstream wallets: Use well-known wallets like MetaMask, Trust Wallet, Binance Wallet, etc., and avoid downloading wallet apps from unknown sources (be cautious of counterfeit apps; download through official channels).