Japanese crypto exchange DMM Bitcoin says it has lost 4,502.9 bitcoin, worth about $308M, in an “unauthorised leak”, and is investigating the incident (Reuters)

Reuters:
Japanese crypto exchange DMM Bitcoin says it has lost 4,502.9 bitcoin, worth about $308M, in an “unauthorised leak”, and is investigating the incident  —  TOKYO, May 31 (Reuters) - Japan's cryptocurrency exchange DMM Bitcoin said on Friday that it had lost 4,502.9 bitcoin …