[BitMEX Sued by Former Investor for £20 Million, Alleging Unauthorized Offering of Derivatives to UK Users] According to The Guardian, former BitMEX investor Lewis Barber has filed a lawsuit in the UK High Court, seeking £20 million in damages. He accuses the exchange of offering cryptocurrency derivatives to UK investors without authorization from the Financial Conduct Authority (FCA). Barber claims that he traded derivatives provided by BitMEX between 2018 and 2022, resulting in losses of approximately £20 million worth of Bitcoin. He is now demanding the return of the relevant Bitcoin or equivalent compensation.