A few days ago, I just recovered from a fever and came across a post that gave me chills.

A user was scammed out of nearly 50 million USDT through an "address poisoning" scheme. The trick isn't very complicated—scammers generate a fake address that looks exactly like the one you're supposed to send to, with the first and last few characters identical, but secretly make some modifications in the middle. Victims first send a small test transaction, everything seems normal. But when they send a large amount, they habitually copy the address from their transaction history, only to end up copying the "poisoned address" sent earlier by the scammer, and millions of dollars end up in someone else's pocket.

Even more terrifying is that transactions involving these poisoned addresses are permanently recorded in your wallet history. Even a test transfer of 0 USDT leaves a trace. One careless move can become the entry point for the next scam.

The good news is, technically, this can be completely prevented. Some mainstream wallets are already testing interception mechanisms—when you try to send to a flagged scam address, the wallet pops up a warning, or even prompts you to compare address similarity. But that's still far from enough.

I believe the entire industry should be more proactive:

First, all wallets should have an "address similarity verification" feature built-in. When a poisoned address is detected, block the transaction directly, leaving no room for user error.

Second, security alliances need to maintain a real-time updated blacklist database. Wallets should quickly check this blacklist before executing each transaction.

Finally, automatically filter suspicious transactions with zero amount, so as not to pollute users' transaction history with junk data.

The technical capability is clearly there, but many wallet products are still slow to respond. Protecting users shouldn't just be about slogans; it needs to start with these details and truly implement measures.

Have you encountered similar security issues when using wallets? Or do you have any ideas about wallet security measures?