A group of financial technology companies is banding together to lobby lawmakers and regulators on cryptocurrencies -- and they plan to pay their Washington advocates partly in digital coins. The firms, all based in the San Francisco area, include digital money transfer company Ripple and...

Just two weeks after Iranian authorities announced a decision to recognize cryptocurrency mining as an economic activity, the government in Tehran is preparing to officially endorse the import of hardware equipment used to mint digital coins. The move is aimed at supporting the new industry...