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The aim is to enhance risk assessment practices in automotive cybersecurity by addressing standard limitations.

February 22, 2026Open Access

ISO/SAE 21343-based Automotive Risks Assessment Revisited

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The aim is to enhance risk assessment practices in automotive cybersecurity by addressing standard limitations.
Evaluated ISO/SAE 21434 standards and their limitations in risk assessments.
Proposed improvements in attack feasibility ratings for more effective risk evaluation.
Applied the Threat, Vulnerability and Risk Assessment (TVRA) methodology to assess attack paths.
Identified key differences in attack motivations between vehicle users and thieves.
Demonstrated that improved risk assessments can lead to better management of cybersecurity threats.
Facilitated informed risk treatment decisions through a more realistic assessment of attack probabilities.

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This analysis improves risk assessment for automotive cybersecurity by considering threat agents' motivations and capabilities.

Barki et al. (2025) studied this question.

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