Mike Lynch, the tech entrepreneur once hailed as Britain’s answer to Bill Gates, has lost an appeal against extradition to the US to answer criminal fraud charges.
Lynch, the founding investor of the British cybersecurity firm Darktrace, is facing allegations that he duped the US firm Hewlett-Packard into overpaying when it struck an $11bn deal (£8.2bn) for his software firm Autonomy in 2011.