
Mastering Cross-Divisional Cybersecurity Risk Management in the Automotive Industry
Modern cars are interconnected systems of software, sensors, and cloud services. As automotive companies divide their work across engineering, production, and backend divisions, cybersecurity risks often fall through the cracks. While standards such as ISO/SAE 21434, the ISO/IEC 27000 family, and the IEC 62443 series provide important building blocks, none fully explain how to align cybersecurity across divisions. Our research at Fraunhofer AISEC reveals the consequences: hard-to-compare risk assessments, unclear communication, and fragmented security strategies. The solution lies in a cross-divisional approach that connects processes, tools, and terminology. Based on a structured analysis of key cybersecurity standards and interviews with experts from six automotive manufacturers, this article contrasts what the standards expect with how organizations work today – and outlines concrete steps to close the gaps.



