medium10 pts · first answer countstoken-standardssmart-contract-security

Unlimited token approvals

Many dApps ask users to approve type(uint256).max of a token. What is the main risk?

A.The token's total supply increasesB.The approval expires after one dayC.Approvals of that size always revertD.If the approved contract is later exploited or malicious, it can take the user's entire balance of that token, now and in the future

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