Yes. SBB complies with the data protection regulations. The service has been approved by the Federal Data Protection Commissioner.
SBB guarantees that they are not tracking your movements and that the location data is deleted straight away. This data is used solely to determine the duration of data use for billing.
Customers expressly agree to the use of data for analysing errors before they use the free internet access (same approach as for FreeWiFi).
The telecoms providers do not receive any location data for passengers on the train.
Data is deleted in accordance with federal regulations.