ABSTRACT Automotive SPICE for Cybersecurity incorporates the Cybersecurity Risk Management process (MAN.7), aligning with the Risk Assessment methods defined in ISO/SAE 21434:2021 (Clause 15). Both standards provide guidance on conducting Threat Analysis and Risk Assessments (TARA). However, they do not specify how to integrate the determination of attack feasibility when multiple TARAs emerge across different development phases. This paper explores how the concept of freedom from interference can facilitate a unified approach to determining attack feasibility in such scenarios.

Automotive SPICE® for Cybersecurity contains Cybersecurity Risk Management process (MAN.7) corresponding to Risk Assessment Methods (ISO/SAE 21434:2021-clause 15). Both standards describe how a Threat Analysis and Risk Assessment (TARA) should be carried out. However, they leave open how, in the event that several TARAs arise at different levels/different points in a life cycle model or a supply chain, these can be synchronized. This paper will outline different scenarios how to perform and synchronize different TARAs performed.

Abstract In August 2021 the ISO 21434:2021 standard for Road vehicles—Cybersecurity Engineering has been published. At the same time the blue book from VDA (Verein der Deutschen Automobilgesellschaft; German Automotive Association) for Automotive SPICE cybersecurity assessments has been released. In addition in the period September–December 2021 the training material for iNTACS (INTernational Assessor Certification Schema) certified Automotive SPICE for cybersecurity assessors has been developed. Since February 2022 the upgrade training of assessors worldwide has started. Beside the ASPICE (Automotive SPICE) for cybersecurity blue book also a red book from VDA has been published. The red book describes the questions to check in an ACSMS (Automotive CyberSecurity Management System) audit. This paper explains the main strategy and content for ASPICE for Cybersecurity assessments and how such assessments are integrated to the overall ACSMS strategy. Also, the paper outlines an example method and tool used in ASPICE for cybersecurity assessments and how such assessment results will look like.