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Security, Scams & Risk

Token Approval

Also: Token Allowance, Wallet Drainer

Permission you give a smart contract to spend a specific token from your wallet, sometimes granted just by signing a message rather than sending a transaction. Unlimited approvals are convenient and dangerous: if the contract is malicious or later compromised, it can empty that token from your wallet. Review and revoke old ones periodically, and read any signature request before you sign.

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General education, not investment, legal or tax advice. Markets and regulation change quickly: where a definition depends on current law or on a recent event, check the latest coverage before relying on it.

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