Bitcoin Drops Amid Concerns Over Exchanges Shutting Down

The price of Bitcoin fluctuated amid concerns that South Korea will shut down exchanges.
The top cryptocurrencies are all trading lower across the board.
Bitcoin is now trading at $13,891, after regaining loses from a week before.
Three of the other top five digital currencies also suffered loses during afternoon trading.
The concern stems from the crypto-exchanges Bittrex, Bitfinex, and CEX.io, who are struggling to scale-up with user-demand.
Those exchanges, which are some of Bitcoin's biggest, stopped registering new users as they upgrade their backend systems.