ScamLens

Has Your Address Been Poisoned?

Address poisoning is the #1 crypto scam. Attackers create lookalike addresses that match your real contacts, hoping you'll copy the wrong one. Paste your wallet address and we'll check for poisoning attempts.

Quick Answer

Quick answer: if you copy recipient addresses from transaction history, you need to check for address poisoning first. Matching first and last characters does not make an address safe, and one bad copy can cause an irreversible loss.

Detects lookalike addresses, dust transactions, and high-similarity risk
Helps separate the real recipient from poisoned history entries
Wrong transfers can continue into tracing, freeze, and recovery paths

How Address Poisoning Works

1

Target Monitoring

Attackers monitor the blockchain for wallets making frequent large transfers.

2

Generate Lookalike

Brute-force generate a new address whose first and last characters closely match the victim\

3

Send Dust

Send tiny token amounts to the victim\

4

Victim Miscopies

The victim copies an address from history, only checks the first/last few digits, and accidentally sends funds to the attacker.

Can You Tell These Apart?

Real Address

0x1a2b3cd4e5f6789012345678901234567890ef12

Poisoned Address

0x1a2b3ca7b8c9000000000000000000000000ef12

First 6 and last 4 characters are identical. Most wallets only show the first/last few digits, making them nearly impossible to distinguish!

7 Blockchains Supported

Ethereum BNB Chain (BSC) Polygon Arbitrum Optimism Avalanche Base

Frequently Asked Questions

What is address poisoning?
Address poisoning is a crypto scam where attackers create a wallet address that looks nearly identical to one you've previously sent funds to. They send a tiny 'dust' transaction to your wallet so their fake address appears in your transaction history. When you copy an address from your history, you might accidentally copy the attacker's lookalike address instead.
How does the poisoning check work?
We analyze your recent transaction history to find addresses you've sent significant amounts to, then check for tiny incoming transactions from addresses that look very similar to your real counterparties. If lookalike addresses are found, we highlight the matching characters so you can spot the difference at a glance.
How can I protect myself from address poisoning?
1. Never copy addresses from your transaction history — use an address book or get the address directly from the recipient. 2. Always verify the FULL 42-character address before sending, not just the first and last few digits. 3. Use a wallet that supports address whitelisting. 4. Regularly check your wallet with this tool.
What are dust transactions?
Dust transactions are extremely small transfers (often 0 value tokens) sent by attackers to make their lookalike address appear in your wallet's recent activity, tricking you into copying the wrong address next time.
Is the poisoning check free?
Yes, completely free with no registration required. We support 7 blockchains: Ethereum, BSC, Polygon, Arbitrum, Optimism, Avalanche, and Base.
Are results 100% accurate?
No tool can guarantee 100% accuracy. Our check is based on transaction pattern analysis and address similarity algorithms that catch the vast majority of known poisoning attacks. However, new attack methods constantly emerge — always manually verify the full address.

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