A device and a method for detecting an erroneous determination of a geographical position of a vehicle. The device includes a sensor that is configured to determine a first yaw rate of the vehicle, a satellite navigation receiver that is configured to receive satellite signals during a predetermined time period, to determine a multiplicity of geographical positions of the vehicle on the basis of the received satellite signals, and to determine a geographical reference position of the vehicle on the basis of the multiplicity of geographical positions, and a processor that is configured to determine a second yaw rate of the vehicle on the basis of the determined geographical reference position of the vehicle, and to compare the first yaw rate with the second yaw rate in order to detect the erroneous determination of the geographical position of the vehicle.