“The program, involving a tool called Greyball, uses data collected from the Uber app and other techniques to identify and circumvent officials. Uber used these methods to evade the authorities in cities such as Boston, Paris and Las Vegas, and in countries like Australia, China, Italy and South Korea.
Greyball was part of a broader program called VTOS, short for ‘violation of terms of service,’ which Uber created to root out people it thought were using or targeting its service improperly. The VTOS program, including the Greyball tool, began as early as 2014 and remains in use, predominantly outside the United States. Greyball was approved by Uber’s legal team.”
Source: How Uber Used Secret Greyball Tool to Deceive Authorities Worldwide – The New York Times
