SEO and Iglaare latest-generation immobilisers that operates through the car CAN line, if necessary, sending a command to block the car (if there is no chip when the car is started). Skybrake physically “interrupts” one of the supply circuits, thereby stalling the car. Because of more complicated electronic systems, SEO and Igla immobilisers are recommended for newer cars. Sometimes it is also the only immobiliser that can be installed on such cars.