Hackers steal $30 million from top Seoul bitcoin exchange

Hackers stole more than $30 million worth of cryptocurrencies from South Korea's top bitcoin exchange, sending the unit's price falling around the world on Wednesday.
The virtual currency was priced at $6,442 dollars late afternoon in Seoul, down about 4.4 percent from 24 hours earlier, after the latest attack on Bithumb raised concerns over cryptocurrency security. Hyper-wired South Korea has emerged as a hotbed of trading in virtual units, at one point accounting for some 20 percent of global bitcoin transactions - about 10 times the country's share of the global economy.