Key Highlights:
- CZ says wallets can completely eradicate address poisoning.
- Binance Wallet already warns about suspicious addresses.
- CZ urges industry security alliances to share blacklists and wants wallets to hide low-value spam transactions.
Binance founder and former CEO, Changpeng Zhao has urged wallet-level defenses, blacklist sharing and spam filtering to protect users from look-alike address attacks.
We can completely eradicate this type of poison address attacks. https://t.co/PJLd8WQV4y https://t.co/5R8JMp1EBe
— CZ 🔶 BNB (@cz_binance) December 24, 2025
Address Poisoning is a Solvable Problem
According to CZ, address-poisoning scams, which have very swiftly taken millions out from innocent crypto users, are now in CZ’s focus. In a new post on Binance Square, the Binance founder said that the crypto industry should be able to completely eradicate this type of poison attacks, and protect our users. He even tweeted the same thing on X. He then moved to stating that action is required on the wallet level.
According to the post on Binance Square, address poisoning takes advantage of a common user habit which is copying wallet addresses from transaction history instead of a trusted source.
Scammers here play smartly and send very small token amounts from a fake addresses whose starting and ending characters closely match the real one. When the victim later makes a large transfer, they may accidently copy the attacker’s address and send funds straight to the scammer.
In one widely shared case mentioned in Chinese-language posts, a victim apparently lost 50 million USDT in under an hour using a poisoned address.
Wallets Should Block “Poison Addresses”
CZ’s main idea is straightforward that wallets should automatically identify “poison addresses” and prevent users from sending funds to them. “All wallets should simply check if a receiving address is a ‘poison address’ and then block the user. This is a blockchain query,” he wrote.
According to the former CEO, wallets can do this by checking on-chain data to see if an address has been marked as suspicious or shows behaviour that is commonly linked to poisoning scams.
To make this stronger, CZ even suggested creating an industry-wide security group that keeps a real-time checklist or blacklist of known scam addresses.
Wallets and exchanges can check this list before they process any transaction, just how banks and payment companies screen transfers against fraud and sanctions databases. According to him, this approach could shift safety away from manual user checks and towards a standardized system that is built within the infrastructure.
Binance Wallet Already Issues Real-Time Warnings
CZ in the post also highlighted that Binance Wallet has already implemented these preventive steps. He shared a few screenshots where an image from a mobile interface that triggers a prominent warning when a user pastes an address that resembles a flagged scam address.
The alert page indicates a caution icon, compares the “current receiving address” with a “recent risky address,” which highlights how similar the two addresses are and reminds the user to double-check before proceeding with transfer of the funds.
Users after they verify the address can cancel or choose to continue. This step adds an extra layer of protection before any high-risk transfer is made. Additionally, these systems do not restrict themselves on fixed lists. Wallets can analyze on-chain behaviour, such as an address sending tiny “dust” amounts to many different wallets, to spot suspicious activity automatically.
These addresses then can be added to shared blacklists managed by the industry alliance. However, if all the major companies follow the lead of CZ and Binance, most everyday users would be protected from the current wave of address-poisoning scams.
Call for an Industry-Wide Standard
CZ says address poisoning is mainly a technical and coordination issue, and not just a mistake by the users. With Binance Wallet already adding blacklist checks, warning alerts, and spam-transaction filters, he is presenting Binance as an early leader and encourages other wallets to follow the same.
CZ believes that if the industry works together and builds these protections into wallets, address-poisoning scam could become rare, proving that safer wallets, not just more careful users, are key to protecting new crypto users.
Also Read: Binance Founder ‘CZ’ Refused President’s Listing Request
