IT security experts claim to have found potentially incriminating evidence against Zaif hackers in Japanese encryption, according to an official statement today, November 5. The experts come from Japan Digital Design Co. (JDD), a subsidiary of the banking giant Mitsubishi UFJ Financial Group (MUFG).
As reported earlier, following a security breach of the Zaif exchange in mid-September, hackers managed to steal $ 6.7 billion (about $ 59 million at the time of printing) of cryptographic assets belonging to both users and in the exchange itself. In particular, the compromised funds consisted of 5,966 bitcoins (BTC), as well as Bitcoin Cash (BCH) and MonaCoin (MONA).
Today's statement stresses that since the stolen Monacoin began to be moved from Zaif on October 20, JDD managed to identify the source of 5 of the transactions in question and provided information to the authorities about the characteristics of the sender of the transactions.
In order to monitor the stolen currency, JDD conducted a hackathon in late September together with the local TokyoWestern cybersecurity team and the EL Plus security company, drawing on the infrastructure from multiple cloud services. The post states that:
"In the investigation of the stolen virtual currency, the remittance route was analyzed through a static analysis of the blockchain […] distributing the virtual currency node on a large scale […] we checked if we can get clues like source IP address etc. "
At the end of September, the Zaif operator, Tech Bureau, received its third order of business improvement from the Japanese Financial Services Agency (FSA). The FSA said it considered the Tech Bureau's investigation into the causes of the recent attack to be inadequate, as well as its response to customers.
The financial regulator also established that if the operator did not comply with the order, the agency could resort to more serious means, such as an order to suspend business and / or l & # 39; cancellation of the registration of the exchange.