"In a network there are also suggestions that the hacking of the South Korean stock exchange CoinRail is the reason for such a sharp drop.
However, it ranks 90th in terms of trading volume ($2.6 million) according to the analytical resource CoinMarketCap. It is noteworthy that almost half of the trades are in the pair NPSX/BTC. It was the coin Pundi X was the object of a hacker attack."