https://arstechnica.com/information-technology/2018/06/bitcoin-prices-continue-to-fall-as-yet-another-exchange-reports-a-breach/

The value of bitcoin and many other digital currencies fell to their lowest levels this year after South Korean exchange Coinrail said a hack over the weekend stole virtual coin estimated to be worth more than $37 million.

In a post published Monday morning, Coinrail said hackers obtained about 30 percent of its coin and token reserves. The stolen coins included those designated as NPXS, ATX, NPER, and DENT. A wallet address reportedly belonging to the attackers showed the value of the pilfered coins was as much as $37 million. Coinrail’s statement said officials took the exchange offline and moved the remainder of its assets to cold storage as officials review the security system and work with law enforcement to investigate what happened. The statement made no mention of if or how the exchange might reimburse customers for the losses.