Software-Defined Vehicle Fleets Face a Twisty Road on Cybersecurity

*Executive summary:* The article surveys cybersecurity risks inherent to software-defined electric vehicles (SDVs), highlighting that modular, drive-by-wire ECUs and increased connectivity expand the attack surface; it discusses regulatory tensions around right-to-repair, the need to secure supply chains and factory OT, and emphasizes that most observed attacks target availability and fleet operations (e.g., remote-start or access manipulation) rather than causing direct safety-critical harm, requiring OEM-led patching, SOC monitoring, and secure diagnostic/update channels.