Between May 13th and 15th, Monacoin, a cryptocurrency developed in Japan, appears to have suffered from a network attack that caused roughly $90,000 in damages. The attack appears to have been a selfish mining attack, where one miner successfully mines a block on the blockchain but does not ... from Google Alert - cryptocurrency https://ift.tt/2IFfXaa via IFTTT https://ift.tt/eA8V8J