UK trader sues BitMEX for return of $27M in bitcoin over unlicensed derivatives

A British software engineer, Lewis Barber, is suing BitMEX operator HDR Global Trading in London for the return of 324.8 bitcoin, worth roughly $27.2 million.  The software engineer alleges that the shuttered exchange sold him derivatives in the UK without approval from the Financial Conduct Authority (FCA). Why is BitMEX getting sued? A British software...