Greyball: how Uber used secret software to dodge the law

Ride-hailing company hit by revelations it used custom-built tool to deceive law enforcement, while latest departure of senior staffer deepens troubles

Uber's annus horribilis continued apace Friday, as it was hit with revelations of a secret program to evade law enforcement, the resignation of another top executive and more allegations of workplace discrimination.

The New York Times reported that for years Uber used a tool called Greyball to systematically deceive law enforcement officials in cities where its service violated regulations. Officials attempting to hail an Uber during a sting operation were "greyballed" - they might see icons of cars within the app navigating nearby, but no one would come pick them up. The program helped Uber drivers avoid being ticketed.