https://www.reuters.com/article/us-uber-cyberattack-uk/uber-says-2016-data-breach-hit-2-7-million-uk-users-or-most-of-its-base-idUSKBN1DT1YP

Uber Technologies Inc [UBER.UL] has informed Britain's data protection regulator that about 2.7 million user accounts - representing the vast majority of people using the ride-hailing service in the country - were affected by a 2016 data breach.