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Largest South Korean cryptocurrency exchange Bithumb reported about "billions of wons" stolen by the hijackers. BraveNewCoin reports about it.
Due to last week cyberattack, hackers was able to stole personal data of 31 800 Bithumb users. That's 3% of all exchange's clients base.
Stolen data consists of names, cellphones and email addresses of users. Local newspaper Kyunghyang Shinmun reported that one user lost around 8700$ due to hacker attack.
Bithump located the hijack on 29th of June and called the police on the next day. Also, more than 100 users contacted More than 100 users contacted the National Police Agency's cybercrime report center.
Representatives of Bithumb argue that there was no direct access to the users' accounts and that the attack was not directed to the internal network of the exchange servers or wallets, but to the computer of one of the Exchange's employees.
After the theft of user data from the computer employee Bithumb fraudsters engaged in "voice phishing". So, one of the users said that they called him, introduced themselves as a Bithumb employee and asked to dictate a one-time password sent by email. After the client of the Korean stock exchange complied the request of the "employee", from his account were stolen bitcoins in an amount equivalent to $ 8,700.
The newspaper also says that despite the fact that the exchange appealed to the law enforcement agencies of the country, about 100 injured clients plan to file a lawsuit against Bithumb.
Bithumb also announce that it is going to refund up to 100 000 wons per a person (around 870$). The remaining payments will be made after the final amount of losses has been accurately determined.
While it remains unclear what kind of legal responsibility the trading platform will bear for lost user funds. The situation is significantly complicated by the absence in the country of regulatory and legal regulation of the regulation of the crypto-currency sphere.