You missed the point, they were not modifying the vehicle in any way. They probably could have purchased their own BYD to examine the software and then hacked his. The likely only issue would be identifying it by IP address. If you are targeting anyone you only need the subnet range.

The real danger was being able to listen in and the potential for identity theft and recording conversations. ASIO recently issued a warning that government officials should avoid having confidential conversations in any internet-linked vehicle, so not just BYD.

BYD though are having a bad day with a major recall due to the spare wheel falling off Shark 6s.

https://www.drive.com.au/news/2024-26-byd-shark-6-recalled-b...

Might have to avoid driving behind one, as I see them everywhere.