Wallet Drainer
Malicious code on a website that empties a connected wallet once the user signs its transaction.
✦ Key Insight
Losses are immediate and total, and because you signed voluntarily there is no chargeback or recovery route.
✕ Common Misconceptions
Signing anything you did not initiate. Use a separate low-value wallet for claims and mints, and treat any request that appears immediately on connection as hostile.
Detailed Explanation
In Practice
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Wallet
Software or hardware that stores your private keys and lets you sign transactions.
Token
An asset created by a smart contract on an existing blockchain rather than being that blockchain's native currency.
Blockchain
A shared, append-only record of transactions maintained by many independent computers at once.
Transaction
A blockchain transaction is a signed or authorized instruction that changes blockchain state or transfers value when accepted by the network.