According to CoinMeta, India's established cryptocurrency exchange Unocoin issued a latest security incident report on November 13, stating that Bitgo had frozen the corporate account as requested on November 6, and the freezing measures were effectively in place. However, the previously discovered abnormal on-chain transactions were signed and broadcast directly outside of the Bitgo platform, without going through the Bitgo system. Unocoin explained that its multi-signature wallet has a backup access mechanism, allowing users to still access their cryptocurrency assets even if Bitgo is unavailable. It is currently suspected that this mechanism has been exploited by attackers. The company is further investigating the specific attack path, the scale of cryptocurrency asset losses, and the extent of information leakage, and platform services have not yet been restored.