#加密安全须知 # Complete Guide to Crypto Asset Security Protection
## One, Basic Security Principles
1. **Private Key Equals Asset**
- The private key is the only proof of control over crypto assets; losing it means losing assets permanently.
- Never share your private key/seed phrase in any form (including screenshots, emails, cloud storage)
2. **Decentralized Responsibility**
- Crypto transactions are irreversible; no customer service can help recover mistakenly operated assets
- All operations are ultimately the user's responsibility
## Two, Wallet Security
### Hot Wallet Protection
1. **Use well-known wallets** (e.g., MetaMask, Trust Wallet)
- Only download from official websites
- Check developer signatures and download counts
2. **Isolation Usage**
- Use small hot wallets for daily transactions
- Store large assets in cold wallets
- Use different wallet addresses for different purposes
### Cold Wallet Usage
1. **Hardware Wallet Choices** (Ledger/Trezor/Coldcard)
- Ensure purchasing channels are official or authorized dealers
- Must initialize and generate a new seed phrase upon first use
2. **Seed Phrase Custody**
- Write it on a fireproof and waterproof metal seed phrase board
- Diversify physical storage (do not keep everything in one location)
- Absolutely prohibit digital storage
## Three, Transaction Security
### Exchange Selection
1. **Compliance Check**
- Check if licensed (e.g., Coinbase holds NYDFS license)
- Is there proof of reserves disclosed?
2. **Security Settings**
- Enable two-factor authentication (2FA), preferably using an Authenticator app rather than SMS
- Set up withdrawal address whitelist
- Regularly change passwords (use a password manager to generate complex passwords)
### Transaction Process Protection
1. **Link Verification**
- Manually input official website domain to access
- Be wary of phishing websites (check SSL certificates and domain spelling)
2. **Contract Interaction**
- Use Etherscan to verify contract code
- First small test transaction
- Revoke unused authorizations (using tools like revoke.cash)
## Four, Network Protection
1. **Device Security**
- Use dedicated devices for encryption operations
- Keep systems and antivirus software updated
- Disable remote access software
2. **Network Environment**
- Do not operate assets on public WiFi
- Consider using a VPN
- Set DNS to trusted services like 8.8.8.8
## Five, Social Engineering Prevention
1. **Identify Scams**
- Be wary of 'official customer service' private messages (real customer service will not contact you proactively)
- There are no free lunches (airdrops and lotteries require extreme caution)
- Do not display QR codes/seed phrases in video conferences
2. **Information Isolation**
- Completely separate crypto social accounts from funding accounts
- Do not expose holdings and transaction information on social media
## Six, Emergency Preparedness
1. **Asset Backup**
- Multi-signature wallet configuration (e.g., 3/5 multisig)
- Share wallet information with trusted family members (in a secure manner)
2. **Escape Plan**
- Pre-set emergency freeze plans
- Keep a record of common exchange customer service contact information
3. **Insurance Options**
- Consider purchasing asset insurance (e.g., Coinbase Custody offers insurance)
- Confirm insurance terms when using custodial services
## Seven, Latest Threat Protection (2024 Special Reminder)
1. **AI Scam Upgrade**
- Be wary of AI-generated 'familiar' voice/video for borrowing money
- Establish family code words to verify identity
2. **Quantum Computing Defense**
- Long-term holders should consider quantum-resistant wallet solutions
- Pay attention to industry developments in post-quantum cryptography
3. **Cross-chain Bridge Risks**
- Use official cross-chain bridges (avoid third parties)
- Split cross-chain amounts into batches
## Security Self-Check List
✅ Is the seed phrase physically backed up and not digitized?
✅ Is 2FA enabled for all accounts?
✅ Have you checked smart contract permissions in the last 6 months?
✅ Is the exchange API key set to read-only permission?
✅ Has a family emergency plan been established?
Remember: In the crypto world, **only the paranoid survive**. Security is not a one-time task but a habit that needs to be continually maintained. When facing any operation, ask one more question: 'What is the worst-case scenario?' This mindset can help you avoid 99% of security traps.