DMM Bitcoin, a Japanese cryptocurrency exchange, said it lost 48 billion yen ($305 million) of bitcoin ($BTC ) following a hack.
In a blog post on its website, DMM Bitcoin said 4,502.9 BTC "leaked" out of the exchange. Measures have been taken to avoid further unauthorized outflows.
"Please be assured that we will procure the equivalent amount of BTC equivalent to the outflow with the support of the group companies and guarantee the full amount," DMM Bitcoin said.
