APRNEWS - Idris Dayo Mustapha, 33, was part of a hacking ring that infiltrated email and brokerage accounts of US firms between 2011 and 2018, causing losses worth $6m (£4.7m), officials said.

A dual national of the UK and Nigeria, Mustapha was extradited from the UK in August, two years after his arrest. 

His crimes carry a jail term of up to 20 years. 

He has not yet been sentenced.