ISO 21434 Overview
Understanding automotive cybersecurity engineering requirements
UNECE WP.29 Connection
ISO 21434 is the primary standard referenced by UNECE WP.29 R155, which mandates cybersecurity management systems for type approval in over 60 countries.
What is ISO 21434?
ISO/SAE 21434 "Road vehicles — Cybersecurity engineering" is the international standard for cybersecurity in the automotive industry. It provides a framework for managing cybersecurity risks throughout the entire vehicle lifecycle.
Key Concepts
TARA (Threat Analysis and Risk Assessment)
TARA is the core methodology in ISO 21434 for identifying and evaluating cybersecurity risks. It includes:
- Asset identification
- Threat scenario identification
- Impact rating
- Attack path analysis
- Attack feasibility rating
- Risk determination
- Risk treatment decision
Cybersecurity Lifecycle
ISO 21434 covers the complete product lifecycle:
| Phase | Key Activities |
|---|---|
| Concept | Item definition, TARA, cybersecurity goals |
| Development | Cybersecurity requirements, design, implementation |
| Production | Production control, secure manufacturing |
| Operations | Incident response, vulnerability management |
| Decommissioning | Secure disposal procedures |
Required Work Products
ISO 21434 defines numerous work products including:
- Cybersecurity Plan
- Cybersecurity Case
- TARA Reports
- Cybersecurity Requirements
- Cybersecurity Specifications
- Verification and Validation Reports
How TARA Flow Helps
TARA Flow dramatically accelerates ISO 21434 compliance:
- Automated TARA - Generate complete threat analysis from architecture diagrams in minutes
- Work Product Generation - Automatically create audit-ready documentation
- Attack Tree Analysis - Visual attack path modeling
- Risk Calculation - Automated impact and feasibility ratings
- Traceability - Full traceability from threats to mitigations
Trusted by 50+ OEMs and Tier-1 Suppliers
TARA Flow is used by leading automotive companies worldwide to streamline ISO 21434 compliance.
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