approval exploit

An approval exploit drained wallets that had given unlimited spending rights to a malicious contract.授权漏洞利用（approval exploit）掏空了曾向恶意合约授予无限花费权限的钱包。

Approval exploits have caused hundreds of millions in losses, highlighting the danger of unlimited token approvals.授权漏洞利用已造成数亿美元的损失，凸显了无限代币授权的危险性。