South Korea's justice minister said on Thursday that a bill is being prepared to ban all cryptocurrency trading in the country. That news is a major development for the cryptocurrency space, as South Korea is one of the biggest markets for major coins like bitcoin and ethereum. According to industry website CryptoCompare, more than 10 percent of ethereum is traded against the South Korean won — the second largest concentration in terms of fiat currencies behind the dollar. Meanwhile, 5 percent of all bitcoin are traded against the won. "There are great concerns regarding virtual currencies and justice ministry is ... (full story)