Analysis: Secondary attack on bZx points to need for thorough audit of DeFi smart contracts

昨日去中心化金融(DeFi)贷款协议bZx再次被攻击。第一次攻击后,该平台被关闭并离线,开发人员试图修复合同约,保证恶意行为体无法执行另一次攻击。第二次攻击虽然不完全相同,但非常相似,似乎以太坊开发者还没有完全理解“Oracle问题”。第一次攻击让加密社区措手不及,因为闪电贷Flash Loan是DeFi平台提供的新产品。第二次攻击表明,需要对DeFi智能合约进行非常彻底的审计。bZx在两次攻击中都冻结了平台,这一事实表明,即使将其作为DeFi进行销售,但最终它是一个集中化平台,开发者可以使用“管理密钥”来关闭平台上的交易。(Bitcoinis)
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