The exchange froze transactions in the wake of the incident, which impacted $6.3bn worth of digital assets.

The broadband provider has not finalised the number of roles to be axed but it will likely be a sizeable chunk of its workforce, the BBC understands.

Airbnb hosts must stop asking guests to wash-up or take out bins under rules coming into force in November.

Ian Thomas, who heads the City of London Corporation, tops the Black Powerlist in its 21st year.