Abstract: A method for detecting fuel fraud when refueling a vehicle at a filling station comprises obtaining, in conjunction with a current refueling operation in which the vehicle is refueled at the filling station, current refueling information, determining if there is a mismatch between the obtained current refueling information and historical refueling information which is based on a plurality of past refueling operations in which comparable vehicles were refueled, and raising a potential fraud warning based at least in part on a determined mismatch. The current refueling information comprises at least: first information indicating a distance the vehicle traveled since at least a previous refueling operation, second information indicating a duration and/or progress of the current refueling operation, and third information indicating an amount of fuel dispensed by a fuel pump in the current refueling operation.