What does this research mean for the field?

The risk assessment method outlined in ISO/SAE 21434:2021 is universally applicable across different phases of the development life cycle for effective threat analysis and risk assessment. Novelty: ClaimNovelty.SYNTHESIS. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The aim is to evaluate the effectiveness and challenges of the risk assessment method in ISO/SAE 21434:2021.

February 22, 2026Open Access

Risk Assessment based on ISO/SAE 21434:2021 - Experiences

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Authors

TLThomas Liedtke JWJ. WebbUniversity of Wolverhampton

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Implication

Exploratory analysis identifies challenges in implementing risk assessments for cybersecurity standards.

Key Points

The aim is to evaluate the effectiveness and challenges of the risk assessment method in ISO/SAE 21434:2021.
Performed threat analysis and risk assessments in various development phases.
Identified key activities including asset identification, threat scenario identification, and risk treatment.
Gained practical experience from multiple TARA customer projects.
Identified common pitfalls in the application of ISO/SAE 21434 standards.
Found that effective cybersecurity relies on both technical expertise and quality processes.
Emphasized the need for additional resources and guidelines for efficient TARA execution.

Cite This Study

Liedtke et al. (2022) studied this question.

synapsesocial.com/papers/699a9e2d482488d673cd4b02 https://doi.org/10.5281/zenodo.18714653

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Risk Assessment based on ISO/SAE 21434:2021 - Experiences

Discussion

Member takes

Implication

Key Points

Cite This Study

Risk Assessment based on ISO/SAE 21434:2021 - Experiences

Discussion

Member takes

Implication

Key Points

Cite This Study

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