Bitcoin tumbles as hackers hit South Korean exchange Coinrail
https://www.reuters.com/article/us-markets-bitcoin-korea/bitcoin-tumbles-as-hackers-hit-south-korean-exchange-coinrail-idUSKBN1J703I
South Korean cryptocurrency exchange Coinrail said it was hacked over the weekend, sparking a steep fall in bitcoin amid renewed concerns about security at virtual currency exchanges as global policy makers struggled to regulate trading in the digital asset.
