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Daily Archives: July 1, 2018

Security Firm Identifies Potential Tether (USDT) Double-Spend Bug

SlowMist, a Chinese cybersecurity firm, has recently pointed out a transaction that should have some worried, as the user managed to double the value of 694 USDT. SlowMist: User On Thursday, a blockchain centric cybersecurity firm, issued a Tweet which drew attention to a questionable USDT transaction. 交易所在进行USDT充值交易确认是否成功时存在逻辑缺陷,未校验区块链上交易详情中valid字段值是否为true,导致“假充值”,用户未损失任何USDT却成功向交易所充值了USDT,而且这些 USDT 可以正常进行交易。我们已经确认真实攻击发生!相关交易所应尽快暂停USDT充值功能,并自查代码是否存在该逻辑缺陷。 …

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