Fifty-seven million customers’ and drivers’ personal data was stolen from Uber Technologies Inc in an October 2016 attack. The data includes names, email addresses and phone numbers of Uber riders around the world, plus the personal information of roughly 7 million drivers. Uber reports that no Social Security numbers, credit card information, trip location details or other data were taken.

This week, the ride-hailing company fired its chief security officer and one of his deputies for their roles in keeping the hack quiet, including a $100,000 payment to the attackers to delete the data, Bloomberg reports. Uber says it believes the stolen information was never used.