This is said to be biggest hack in the history of crypto currency.
A Tokyo base crypto exchange - CoinCheck have confirmed that its systems was compromised and around 58 billion yen (approx. $533 million) were taken from Coincheck's digital wallets.
The hack incident came up when a tweets from Costin Raiu, appeared to indicate that the precise amount of XRP have been transferred from CoinCheck to unknown address.
110 mil usd in #Ripple (XRP) were sent from the Japanese cryptocurrency exchange Coincheck to an unknown address. Hacking suspected. https://t.co/hmGhlSmJEH— Costin Raiu (@craiu) January 26, 2018
Moreover, CoinCheck also looking for compensating it's customers. But initially CoinCheck had hold all the transactions of currencies including deposit and withdrawal.