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慢霧餘弦:此前 Blast 上 WETH 被釣魚事件因 nferno Drainer 支持離線授權簽名

2024-09-20 21:39:08

ChainCatcher 消息,慢霧餘弦在 X 平台發文稱,此前某用戶在 Blast 上的 WETH 被釣魚事件,有幾個關鍵信息需要注意:

  1. Blast 上的 WETH 是 Blast 發行的 Blast's wrapped ETH token,合約可升級,支持 permit 離線授權簽名;
  2. 以太坊主網上的 WETH 代碼也就差不多 50 行,非常非常簡潔可靠,發行多少 WETH,就有多少 ETH 在合約裡存著,沒有 permit 這些花里胡哨的功能;
  3. 用戶被釣魚是因為 Inferno Drainer 支持了 Blast WETH permit 離線授權簽名,釣魚團夥研究的真是細節,細節決定了收益。
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