Satellite navigation receiver , comprising: a receiver unit configured to receive and process a satellite navigation signal from a satellite navigation system at a certain time, to obtain a received signal , the received signal comprising a first component in a digital form and a second component in the digital form, wherein the first component in the digital form is encrypted; a transmitter or a controller ; a verification unit configured to verify whether data carried by the second component in the digital form is valid; a filter unit configured to filter out the second component in the digital form from the received signal , to obtain a filtered signal , the filtered signal comprising just the first component in the digital form, and to provide the filtered signal to the transmitter or controller ; and wherein the transmitter is configured to transmit the first component in the digital form together with an identification of a user of the satellite navigation receiver at the certain time and further together with an indicated time, at which the satellite navigation receiver received the satellite navigation signal , if the data carried by the second component in the digital form is valid; or wherein the controller is configured to store the first component in the digital form on a non-volatile storage medium together with other data representing an information from a location, at which the satellite navigation receiver was located at the certain time, if the data carried by the second component in the digital form is valid; wherein the controller is configured to store the first component in the digital form on the non-volatile storage medium further together with an indicated time and location, at which the other data were recorded. a receiver unit configured to receive and process a satellite navigation signal from a satellite navigation system at a certain time, to obtain a received signal , the received signal comprising a first component in a digital form and a second component in the digital form, wherein the first component in the digital form is encrypted; a transmitter or a controller ; a verification unit configured to verify whether data carried by the second component in the digital form is valid; a filter unit configured to filter out the second component in the digital form from the received signal , to obtain a filtered signal , the filtered signal comprising just the first component in the digital form, and to provide the filtered signal to the transmitter or controller ; and wherein the transmitter is configured to transmit the first component in the digital form together with an identification of a user of the satellite navigation receiver at the certain time and further together with an indicated time, at which the satellite navigation receiver received the satellite navigation signal , if the data carried by the second component in the digital form is valid; or wherein the controller is configured to store the first component in the digital form on a non-volatile storage medium together with other data representing an information from a location, at which the satellite navigation receiver was located at the certain time, if the data carried by the second component in the digital form is valid; wherein the controller is configured to store the first component in the digital form on the non-volatile storage medium further together with an indicated time and location, at which the other data were recorded. <EOS>