Cunning creation: The tool allowed Uber to show images of "ghost" Uber cars on the app or show that no cars were available in order to deceive authorities.
Ride services company Uber Technologies Inc for years has used a secret tool to avoid authorities in markets where its service faced resistance by law enforcement or was banned, the company confirmed.
The New York Times first reported the existence of the programme, called Greyball, which uses data from the Uber app and other methods to identify and circumvent officials who aimed to ticket or apprehend drivers in cities that opposed its operations.
