TISAX® vs ISO 27001: Choosing the Right Information Security Framework for Your Organization

What are ISO 27001 and TISAX®?

ISO/IEC 27001 is the world's most widely adopted standard for Information Security Management Systems (ISMS). It gives organizations of any size or sector a structured, risk-based approach to identifying, managing, and reducing information security risks, and it results in independent, third-party certification. It also sits within a wider family of related standards; if you want the fuller picture, see our overview of information security standards.

TISAX® (Trusted Information Security Assessment Exchange) was created by the German Association of the Automotive Industry (VDA) and is governed by the ENX Association. It was designed to meet the information security and data protection expectations of automotive manufacturers and their global supply chains. TISAX® is built on the foundations of ISO 27001 but adds automotive-specific requirements, such as prototype protection and controls for third-party access. Assessments are currently based on VDA ISA version 6.0, mandatory for all new TISAX® assessments since April 2024.

Key Differences at a Glance

In practice, automotive OEMs, including brands such as BMW, Mercedes-Benz, Audi, and Volkswagen, increasingly expect TISAX® assessments from suppliers, and this expectation is spreading through the wider automotive supply chain, including outside Europe.

Which Framework is Right for your Organization?

If your organization serves customers, regulators, or partners across diverse industries, ISO 27001 is generally the more strategic and flexible foundation: it is recognized well beyond the automotive world and demonstrates robust information security governance to any stakeholder.

If your organization is part of the automotive supply chain, particularly one that supplies European OEMs, a TISAX® assessment is often a non-negotiable condition of doing business, regardless of what other frameworks you hold.

Many organizations find that a combined approach works best: implementing ISO 27001 to build a strong information security management foundation, then layering the automotive-specific TISAX® requirements on top to meet supply chain expectations. Organizations operating in the EU should also weigh how ISO 27001 supports compliance with the NIS2 Directive; our whitepaper, NIS2 vs. ISO 27001: Mapping the Requirements, walks through the overlap in detail.

Making an Informed Decision

Choosing between ISO 27001 and TISAX®, or deciding to pursue both, is ultimately a business decision shaped by your industry position, customer requirements, and risk profile. Reviewing the applicable scheme rules (IAF for ISO 27001, ENX for TISAX®) and speaking with your customers about their specific expectations are useful next steps before committing to either path. Looking further ahead, as AI systems increasingly touch sensitive data, some organizations are also exploring ISO/IEC 42001 for AI governance as a complementary framework alongside ISO 27001 and TISAX®.