Hackers accessed an Uber database in 2014, compromising the data of about 50,000 drivers in multiple states.
Uber, the ride-sharing company, made the announcement Friday.
The company said the driver information -- names and driver's license numbers -- were accessed on May 13, 2014 by an unauthorized party. They discovered it on Sept. 17.
Some 50,000 current and former Uber driver "partners" were affected. Uber said that's a small percentage of their drivers.
Uber said they've changed the access protocols. They have not gotten any reports that information was misused.
They are offering affected Uber drivers a free one-year membership of a credit monitoring program.
Drivers who were impacted should have gotten a notification letter.