Coinbase reportedly stopped all Ethereum Classic (ETC) transactions following a potential so-called “double spend” attack, The Hacker News reported. The cryptocurrency exchange found “repeated deep reorganizations” of the digital currency’s blockchain. According to the outlet, attackers reportedly took coins that had been spent from those that received them, before moving them to new entities that they … Continue reading Bitcoin Daily: French Tobacco Shops Have Bitcoin For Sale; China Mobile Creates Blockchain Water Purifier