Tesla motors has improved IoT security controls so that unauthorized access & theft are now more difficult:

https://www.pcmag.com/news/365007/tesla-makes-the-model-3-harder-to-steal

As part of a software update, Tesla made the Model 3 much harder to steal simply by introducing a username and password to disable mobile access. Climate control also gets more precise by adding the ability to drag air to a desired location in the car.

Passive entry mode on a Tesla allows you to enter your vehicle without needing to unlock it. Instead, the car senses when you are near and unlocks the doors. But such a feature is also prone to abuse and can allow a Tesla to be stolen. However, a new software update (version 9) for the Model 3 makes stealing one and getting away with it much more difficult.

Tesla’s fix for this is very simple: disabling mobile access now requires a username and password, making it all but impossible for a thief to disable. The other major feature update included with the new software allows for more precise airflow when using climate control, As Electrek reports, using a 3D visualization you can pinch and drag the airflow to direct and split it through the touchscreen interface. It means the air can be made to travel exactly where you want it to and hopefully keep everyone in the car happy