The exchange stopped trading all cryptocurrencies except bitcoin on Friday after $534m NEM coins, a lesser-known currency, were stolen. CNN reported that Coincheck promised to partially fund some of the investors affected by the loss, though it’s unclear when and how.
Japan’s Financial Services Agency plans to take administrative actions against the hack. The second largest hack was in 2014, when Tokyo-based exchange Mt.Gox, which once handled 80 percent of the world’s bitcoin trade, had $400m stolen from its network.