Tesla (or Google) and the risk of massively distributed physical terrorist attacks

Tesla (or Google) and the risk of massively distributed physical terrorist attacks: "In the real world, the whole of our critical software infrastructure is practically impervious to any form of attack, and, if nothing else, companies take the ethical responsibilities inherent in their control over data and systems with the seriousness it demands, even lobbying for higher levels of regulation than less technically sophisticated public and governments demand."