During discussions with Toyota, I am much happier that my new NX will be secure to current threats and to many on the way.
Despite some comments here, I was assured that Lexus are very active in research and implementation on new vehicles but I understand the difficulties with some older models.
I will not pass any comment that might in any way make it easier to compromise that!
A good understanding of the issues can be found here (including in the extensive comments which also include the NX 😉 )
https://kentindell.github.io/2023/04/03/can-injection/