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[lastpost] => 2648796 适用于加密领域的 10 条德州扑克经验（转） 1715338678 心随你动
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9 月 10 日，慢雾 MistTrack 在社交媒体上发文表示，攻击者利用 LDO 代币合约问题，对交易所进行「假充值」攻击。LDO 的 Token 合约在处理转账操作时，如果转账数量超过用户实际持有的数量，该操作并不会触发通常的交易回滚。相反，它只是返回「false」作为结果，而不表示失败，LDO 代币合约存在潜在的「假充值」风险。
! a9 B! {8 U0 e" [" L: d8 b0 n6 |
! j2 X* a1 D8 ~+ R# R; D由于上述特性，存在一种潜在的「假充值」风险。恶意攻击者可能会尝试利用这一特性进行欺诈行为。
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0 A: e5 C* l; J# l: |慢雾建议如下：% E& u% Q9 x: A1 Q' K7 M2 w. u
1. 在处理 token 到账的逻辑时，不仅仅依赖于交易的成功或失败，还需要根据 token 合约的实际返回值进行判断。5 v1 ~6 J2 _' y- }, |
2. 请注意，市场上存在许多非 ERC20 标准的 Token 合约。在接入新的 token 之前，务必对其合约代码进行深入的理解和分析，确保实现正确的入账逻辑。$ V% W% w" x& z% P) y
3. 建议定期进行代码审计和安全检查，确保系统的健壮性和安全性。& {% |5 K- K1 J
1 A) Y4 A1 W' T( q# i0 C7 `. E
Token 合约的实现和行为可能因项目而异。为了确保资金的安全和交易的准确性，强烈建议在接入任何新的 Token 之前，深入理解其合约逻辑并进行充分的测试。 |
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