Biggest crypto hack ever loses more than $500M
Coincheck said that around 523 million of the exchange's NEM coins were sent to another account around 3 a.m. local time (1 p.m. ET Thursday). The exchange has about 6 percent of yen-bitcoin trading, ranking fourth by market share. Coincheck subsequently restricted withdrawals of all currencies, including yen, and trading of cryptocurrencies other than bitcoin.
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