(Bloomberg) -- Uber Technologies Inc. said an unauthorized thirdparty accessed the company’s database last year and may have takendata on about 50,000 drivers.

The drivers were notified, and Uber has taken legal steps togather information about the breach, the mobile car-booking companysaid in a statement on its website Friday.

The unauthorized access, which happened in May 2014, followsUber’s tussles with regulators around the world, which are seekingmore information on whether drivers are carrying the right licensesand insurance. This week, Uber agreed to provide Maryland’s PublicUtility Commission with the names of its drivers in the state afterauthorities sought to regulate its operations. While the databreach only affected a “small percentage” of Uber’s drivers,according to the company, it underscores the sensitivity of thedata collected as part of Uber’s operations.

“To date, we have not received any reports of actual misuse ofany information as a result of this incident, but we are notifyingimpacted drivers and recommend these individuals monitor theircredit reports for fraudulent transactions or accounts,” KatherineTassi, Uber’s managing counsel for data privacy, said in thestatement.

Uber said the data breach was detected in September and includedonly the names and drivers’ license numbers. Uber is offering ayear of free identity protection services for affected drivers, thecompany said.