As vehicles offer an ever-growing number of digital features, they could present several security threats. One challenge is identifying the right owner of the vehicle. The second issue is deprovisioning when an owner sells a car, and making sure that the previous owner can’t still remotely start the car. Another issue is a lack of two-factor authentication services. The fourth threat is too much decision-making in the vehicle, i.e. requiring that the vehicle make all the security decisions and take security actions.”]
Source: https://www.csoonline.com/article/2131687/will-your-next-car-steal-itself-.html