I now have full remote control of over 20 Tesla’s in 10 countries

Even stating they have control even if they do nothing is more of a risk than I would be willing to take. Two security researcher took control of a vehicle several years back [1][2][3][4] and didn't really think through how they were doing the demo. The vehicle was on a live highway. There were articles that spoke of the trouble the researchers got themselves into but appear to have vanished from the google.

[1] - https://www.wired.com/2015/07/hackers-remotely-kill-jeep-hig...

[2] - https://www.cbc.ca/news/science/hackers-kill-engine-of-movin...

[3] - https://www.reuters.com/article/us-fiat-chrysler-recall/fiat...

[4] - https://nakedsecurity.sophos.com/2019/01/10/supreme-court-re...

If the person can rick roll them, he can put up a YouTube video explaining they are compromised and with instructions on how to fix the vulnerability, and then play it.

Tesla software is getting pretty bad. I had my car reboot while driving at speed on the highway; the turn signals and speedometer went out with it.

Tesla told me it’s normal for it to “reboot occasionally during normal operation”. They didn’t seem that phased by the situation.

It's not the 'owners fault' if this can be done easily without very specific and problematic actions by the driver.

It's a product problem, not an 'owner problem'.

Is there a write up somewhere?