The car's low-level control is still functional as normal, it's just the user interface that crashes, disabling the main display, all readouts, and all notifications. Rebooting the UI can fix the problem (it will reset itself automatically after two minutes as well). So it's a security issue, but not that serious as the title may suggest otherwise.
Still, apparently, a bad webpage with a loop of JavaScript that hangs the web browser can lead to a complete failure of the entire user interface, even disabling the speedometer, turn signal (only the notification, visual and sound, not the actual signal), and AutoPilot status. Still a red flag and not a sign of good engineering.
Still, apparently, a bad webpage with a loop of JavaScript that hangs the web browser can lead to a complete failure of the entire user interface, even disabling the speedometer, turn signal (only the notification, visual and sound, not the actual signal), and AutoPilot status. Still a red flag and not a sign of good engineering.