TISAX
Automotive framework for standardized information security assessments
ISO 27018
International code of practice for PII protection in public clouds
Quick Verdict
TISAX ensures automotive supply chain security via assessments for prototypes and IP, while ISO 27018 protects PII in public clouds through privacy controls. Automotive firms adopt TISAX for OEM contracts; CSPs use 27018 for customer trust and regulatory alignment.
TISAX
Trusted Information Security Assessment Exchange (TISAX)
Key Features
- Centralized ENX portal shares assessments across automotive partners
- Three risk-based levels: self-assessment to on-site audits
- Prototype protection modules for parts, vehicles, and events
- VDA ISA catalog with 70+ maturity-scored controls
- Built on ISO 27001 with automotive-specific extensions
ISO 27018
ISO/IEC 27018:2025 Code of practice for PII in public clouds
Key Features
- Privacy controls for public cloud PII processors
- Subprocessor transparency and location disclosure
- Prohibits PII use for marketing without consent
- Customer breach notification requirements
- Data subject rights support mechanisms
Detailed Analysis
A comprehensive look at the specific requirements, scope, and impact of each standard.
TISAX Details
What It Is
TISAX (Trusted Information Security Assessment Exchange) is an industry-specific framework developed by the ENX Association and VDA for the automotive supply chain. It standardizes assessments of information security capabilities, focusing on protecting sensitive data like prototypes and IP. Rooted in a risk-based approach using the VDA ISA catalog, it verifies CIA triad protections at three maturity levels.
Key Components
- VDA ISA catalog with 70+ controls across policy, access, operations, and supplier relationships.
- Assessment levels: AL1 (self), AL2 (remote), AL3 (on-site).
- Modules for information security, prototype protection, and data protection.
- 3-year labels shared via ENX portal; maturity scoring (0-5). Built on ISO 27001 ISMS principles with automotive tailoring.
Why Organizations Use It
OEMs mandate TISAX contractually for suppliers, preventing revenue loss and access denial. It reduces duplicate audits (70-90% efficiency), mitigates breach risks (€4.5M avg), enables market access, and builds trust in global chains.
Implementation Overview
Phased: preparation/gap analysis (1-3 months), remediation/tabletops (3-9 months), audit/certification (2-4 months). Targets automotive ecosystem (OEMs, Tier 1/2 suppliers); scalable for SMEs to enterprises via self-assess or audits by accredited providers like DQS/TÜV.
ISO 27018 Details
What It Is
ISO/IEC 27018:2025 is a code of practice extending ISO 27001 and ISO 27002 to protect personally identifiable information (PII) processed by public cloud service providers acting as PII processors. It focuses on cloud-specific privacy risks like multi-tenancy and cross-border data flows, using a risk-based approach integrated into an Information Security Management System (ISMS).
Key Components
- ~25–30 additional privacy-specific controls across Organizational, People, Physical, and Technological themes.
- Core principles: consent/choice, purpose limitation, data minimization, accuracy, transparency, accountability.
- Built on ISO 27001 certification model; assessed during ISO 27001 audits, no standalone certificate.
Why Organizations Use It
- Enhances customer trust, accelerates procurement via Statement of Applicability.
- Aligns with GDPR, HIPAA processor obligations.
- Mitigates privacy risks, supports cyber insurance.
- Provides competitive differentiation for CSPs.
Implementation Overview
- Gap analysis, integrate controls into ISMS.
- Update policies, train staff, implement technical safeguards.
- Suited for CSPs all sizes/industries; requires third-party audits.
Key Differences
| Aspect | TISAX | ISO 27018 |
|---|---|---|
| Scope | Automotive supply chain info security & prototypes | PII protection in public cloud services |
| Industry | Automotive sector, global supply chains | Cloud service providers, all sectors |
| Nature | Voluntary industry assessment & exchange | Voluntary code of practice extension |
| Testing | AL1-3 assessments by ENX providers, 3-year labels | ISO 27001 audits with privacy controls |
| Penalties | Contract loss, no legal fines | No legal penalties, certification loss |
Scope
Industry
Nature
Testing
Penalties
Frequently Asked Questions
Common questions about TISAX and ISO 27018
TISAX FAQ
ISO 27018 FAQ
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