Web3 Trading Security Guide: Protect Your Digital Assets

With the continuous development of the blockchain ecosystem, on-chain transactions have become an important part of the daily operations of Web3 users. User assets are migrating from centralized platforms to decentralized networks, and this trend means that the responsibility for asset security is gradually shifting to the users themselves. In the on-chain environment, users need to be accountable for every interaction, whether it is importing wallets, accessing DApps, signing authorizations, or initiating transactions; any operational mistake could pose security risks.

Although mainstream wallet plugins and browsers have gradually integrated risk identification features, it is still difficult to fully avoid risks solely relying on passive defenses from tools in the face of increasingly complex attack methods. To help users better identify potential risks in on-chain transactions, we have compiled a systematic guide to on-chain transaction security, aimed at helping Web3 users establish a "self-controllable" security barrier.

Core Principles of Secure Trading:

• Refuse to sign blindly: Never sign transactions or messages that you do not understand.
• Double-check: Be sure to verify the accuracy of relevant information multiple times before conducting any transactions.

Security Trading Advice

Safe trading is key to protecting digital assets. Here are specific recommendations:

• Use a secure wallet: Choose a reputable wallet provider, such as hardware wallets or well-known software wallets. Hardware wallets provide offline storage, suitable for storing large amounts of digital assets.

• Double-check transaction details: Always verify the receiving address, amount, and network before confirming the transaction to avoid losses due to input errors.

• Enable Two-Factor Authentication (2FA): If the trading platform or wallet supports 2FA, be sure to enable it to enhance account security.

• Avoid using public Wi-Fi: Do not conduct transactions on public Wi-Fi networks to prevent phishing attacks and man-in-the-middle attacks.

How to Conduct Secure Transactions

A complete DApp transaction process includes several stages: wallet installation, accessing the DApp, connecting the wallet, message signing, transaction signing, and post-transaction processing. Each stage carries certain security risks, and the following will introduce precautions to be taken during actual operations.

1. Wallet Installation

• Download the wallet from the official app store and avoid using third-party websites.
• Back up and store your seed phrase carefully, preferably offline.

2. Access DApp

• Confirm the correctness of the website URL and avoid accessing it directly through search engines or social media links.
• Check if the address bar is an HTTPS link; the browser should display a lock icon.

3. Connect Wallet

• Be cautious if the DApp frequently requests signatures; handle any abnormal behavior with care.

4. Message Signature

• Carefully review the signature content and avoid blind signing.
• Understand common signature types, such as eth_sign, personal_sign, and eth_signTypedData.

5. Transaction Signature

• Carefully check the recipient's address, amount, and network.
• For large transactions, it is recommended to use offline signing.
• Pay attention to the reasonableness of gas fees.

6. Post-transaction processing

• Timely check the on-chain status of the transaction to confirm if it aligns with expectations.
• Regularly manage ERC20 Approval authorizations and revoke unnecessary approvals.

Capital Isolation Strategy

• Use multi-signature wallets or cold wallets to store large amounts of assets.
• Use a plug-in wallet as a hot wallet for daily interactions.
• Regularly change hot wallet addresses to reduce risk exposure.

If you accidentally encounter a phishing attack:

• Use the authorization management tool to revoke high-risk authorizations.
• For permits that have been signed but not executed, a new signature can be initiated immediately to invalidate the old signature.
• If necessary, quickly transfer remaining assets to a new address or cold wallet.

Secure Participation in Airdrop Activities

• Conduct background research on the project.
• Use a dedicated address to participate, isolating the main account's risk.
• Click links with caution and obtain information only through official channels.

Suggestions for Choosing and Using Plugin Tools

• Use trusted extensions.
• Check user ratings and installation numbers before installation.
• Regularly update the plugin to get the latest security features.

Conclusion

By following the above security trading guidelines, users can interact more safely within the complex blockchain ecosystem. To achieve true security on-chain, it is necessary to establish systematic security awareness and operational habits. By using hardware wallets, implementing fund isolation strategies, regularly checking authorizations and updating plugins, and adhering to the concepts of "multi-factor verification, rejecting blind signing, and fund isolation" in trading operations, one can truly achieve "freedom and security on-chain."