According to CoinMeta, Wu said that the digital asset custody company Bitgo responded to a security incident at the Indian cryptocurrency exchange Unocoin, stating that the corporate account of Unocoin was frozen on November 6th, and the freezing measures took effect as scheduled. Upon investigation, it was found that the related fund transfers were signed by the user's private key and backup private key held by Unocoin, and were broadcast onto the blockchain outside of the Bitgo platform; Bitgo was not involved in these transactions. Unocoin wallet uses a 2-of-of-3 multi-signature self-custody architecture, and Bitgo only holds the third private key, which was not utilized in this incident. Bitgo stated that their system was not compromised in this incident, and other customers were not affected. Previously, Unocoin suspended all platform services on November 9th due to an infrastructure intrusion and is still investigating potential asset losses and the cause of the incident.