https://www.cnbc.com/2018/06/10/bitcoin-tumbles-10-percent-after-news-of-south-korea-crypto-exchange-hack.html

Bitcoin tumbled 10 percent on Sunday to its lowest in two months, after a relatively small South Korean exchange said it was hacked.

Over the weekend, crypto exchange Coinrail tweeted that it was hacked, and noted that lesser-known cryptocurrencies such as Pundi X were among those affected, according to Google Translate. The Pundi X-bitcoin pair is the most-traded on Coinrail, CoinMarketCap data showed.