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Wallet Drainers: How "Connect Wallet" Can Empty Your Crypto

Updated 2026-10-03 · All scam guides

A wallet drainer is a malicious website that looks like a free airdrop, an NFT mint or a popular app. It does not need your seed phrase. It only needs you to click "connect" and then "approve" or "sign".

How it works

You see a post or DM about a free token claim or a limited mint. The site looks legitimate and asks you to connect your wallet. Then your wallet shows a request to approve spending or sign a message. That approval can give the site permission to move your tokens or NFTs, now or later, without asking again.

Red flags

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