Japan Digital Design's cybersecurity experts, a subsidiary of Mitsubishi UFJ Financial Group (MUFG), claim to have found revealing information about the bad actors behind the $ 60 million hack of the Japanese cryptographic exchange Zaif.
The company announced in a press release on Monday that it investigated the outflow of funds from Zaif immediately after the hack, in association with Takayuki Sugiura to the IT security consulting company L Plus and security experts from a cybersecurity team "capture the flag" called TokyoWesterns.
Once some of the stolen funds in the monacoin cryptocurrency began to move at the end of last month, Japan Digital Design said it was able to identify the "source" of the attackers.
The team added that they shared this information with the authorities, saying: "Since Monacoin started moving since October 20, we estimated the source of 5 transactions in question and provided information to the authorities about the characteristics of the company. ordering party of the transaction ".
Although there are few specific details provided and it is not clear how accurate the data are collected, the press release further states (via online translation):
"In the leaked virtual currency survey, the remittance route was analyzed through the static analysis of the block chain, but with this effort, distributing the large-scale virtual currency node after the outflow of virtual currency , we checked if it can get clues like the source IP address etc. We have also obtained useful data to understand the accuracy of the information and the cost of the tracking. "
Zaif, a cryptographic exchange authorized in Japan, was violated in September, losing cryptocurrency worth about $ 60 million at the moment, including bitcoins, bitcoin money and monacoin.
Last month, the Japanese financial regulatory authority, the Financial Services Authority (FSA), said yes search for information from Tech Bureau, the operator of Zaif, including why there was a delay in reporting the hack.
Technical office also revealed in October a plan to compensate users who have lost funds in the attack – a move that saw him sign an agreement to transfer the business of the exchange of Zaif to the publicly traded Fisco investment company.
According to Japan lost $ 540 million for cryptographic hacks in the first six months of 2018, according to data from the National Police Agency (NPA).
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