Many newer vehicles contain systems, OEM and/or after-market, that are permanently connected to the internet via cellular modem. Other systems with insecure RF

Many newer vehicles contain systems, OEM and/or after-market, that are permanently connected to the internet via cellular modem. Other systems with insecure RF tech used for various gimmicks. Other systems that communicate with external and potentially malicious devices like chargers. Etc. Most of these systems have enough access to (in)directly destroy or booby trap the car. My car is able to receive ECU(!), firmware, software updates OTA from the manufacturer. These critical systems are just as "closed" or "isolated" as cloud-enabled "CCTV." Scary stuff.