She explained that depersonalized phone numbers of Citymobil customers and quantitative indicators of trips made using the service leaked to the network.
The company apologized to users and drivers of partner parks whose data was made public.
The company is also conducting an internal investigation.
On December 23, Citymobil confirmed to RIA Novosti that the driver's passport data had been leaked.
On December 7, Russian President Vladimir Putin, at a meeting with members of the Human Rights Council, made tougher penalties for leaking personal data.