Blockchain User Must Understand Address Pollution Prevention Solutions

Address poisoning attacks are becoming an invisible killer for crypto users. Hackers forge similar addresses to trick users into transferring funds to malicious addresses, resulting in permanent loss of assets. The reason these attacks are difficult to prevent lies in the lack of effective verification mechanisms in wallets.

**Core Issue: Lack of Wallet Verification Creates Vulnerabilities**

Currently, most wallets perform almost no address security checks when users initiate transfers. As long as the address format is correct, the system executes the transfer command. This means that once a user copies a malicious address, funds can instantly flow to the hacker’s account—by then, it’s too late. Spam transactions and scam addresses flood the blockchain network, and users often have no ability to manually distinguish them.

**Industry-Level Solution: Multi-Layer Defense System**

To eliminate such risks, a comprehensive protection chain must be established on the wallet side. First, all wallets should deploy **Address Security Query Functions** that automatically check whether a pasted or entered address exists in a known malicious address list each time. Second, wallets should intelligently filter abnormal transactions—when transaction amounts are too small or addresses are flagged as suspicious, the system should proactively alert the user.

**Establishing an Industry-Wide Blacklist System**

Relying solely on individual wallets is far from enough. The crypto industry needs to establish a **Unified Collaboration Alliance** composed of security agencies, exchanges, and wallet providers to maintain a real-time updated malicious address blacklist database. All mainstream wallets should integrate this blacklist check process before users send transactions, forming an industry-wide protective network. Even if hackers create new malicious addresses, relevant organizations can quickly add them to the blacklist system for the entire network to reference.

**Wallet Practice Case: Proactive Warning Mode**

Some wallet products have already implemented this solution. When a user attempts to transfer to an address marked as malicious, the wallet immediately pops up a detailed warning message to prevent the transaction from proceeding. This combination of blockchain address querying and real-time verification greatly reduces user losses caused by accidental errors.

Building a secure ecosystem takes time, but every wallet’s security upgrade is a step toward strengthening the entire industry’s defenses.