Your data is already signed on the sensor and is only transmitted via secure data connections (TLS 1.2). In our trackle backend, where the data evaluation takes place, the data is only available in signed form. The signature can only be opened in the user’s app, where the user’s key is stored, and only then does the data become readable for humans. There is no personal data whatsoever stored in our trackle backend (meaning no names, no addresses, no phone numbers, no email addresses, no credit card information, etc.).