To ring-fence Fitbit's health data, Google has proposed to set up a structure for data storage consisting of auditable technical and process controls called Fitbit Account Data, the EU questionnaire seen by Reuters said. This data will not be transferred to a Google account nor be available to Google ads, while Fitbit will be the sole legal data controller, the document said. The Commission asked if the pledge would make it more difficult for rivals to match Google's services and if the data protection system was appropriate and effective.