6.6 Security AFX Trade 跨链桥被攻击，损失 2415 万美元 USDC。攻击者利用验证者签名授权提现，将资金转至以太坊并兑换为 12,467 枚 ETH。
AFX Trade 是一个去中心化衍生品平台，于 7 月 22 日遭遇重大攻击，导致约 2415 万美元 USDC 被盗。此次攻击针对 AFX 在 Arbitrum 网络上运营的跨链桥。安全公司 Blockaid 于 UTC 时间 21:30 左右检测到未经授权的资金转移，发现有五个热验证者的签名（占桥验证者权力的三分之二以上）授权了该转账。 交易经过简短的争议窗口后，资金被释放。被盗 USDC 随后被桥接到以太坊，并以每 ETH 1,937 美元的均价兑换为约 12,467 枚 ETH。Offchain Labs 确认，此事件未影响 Arbitrum 原生桥基础设施。 截至发稿时，AFX 尚未发布技术复盘或官方声明。此次攻击引发了对跨链桥安全性及 DeFi 协议中验证者授权流程的担忧。
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Perp DEX AFX Trade hacked, 24.15 million USDC stolen three hours ago.
