Unlock the Editor’s Digest for freeRoula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter.Crypto exchange Coinbase has been fined £3.5mn by the UK’s financial watchdog for providing payment services to more than 13,000 “high-risk” customers, in the first enforcement action by the regulator against a company that enables cryptocurrency trading.The Financial Conduct Authority fined Coinbase’s subsidiary, CB Payments Ltd, for “repeatedly breaching a requirement that...