TISAX vs. ISO 27001: A comparison for the automotive industry

Information security is paramount in today's digital landscape, particularly for industries like automotive, where sensitive data and complex, global supply chains are prevalent. Two significant frameworks that address these concerns are TISAX and ISO 27001. Let's dive into what they offer, how they differ, and why both are important for automotive suppliers.

Understanding TISAX and ISO 27001

TISAX (Trusted Information Security Assessment Exchange)

TISAX, developed by the German Association of the Automotive Industry (VDA), is an assessment and exchange mechanism for information security within the automotive sector. It was created in response to the industry's unique challenges. The TISAX framework is built upon the foundational principles of ISO 27001 but extends them to cover industry-specific needs.

TISAX emphasizes a standardized approach to ensure that all companies within the automotive supply chain adhere to a consistent level of information security. This helps major automakers and their suppliers manage and exchange sensitive information securely and efficiently, fostering a culture of trust and collaboration within the industry.

ISO 27001 (International Organization for Standardization 27001)

ISO 27001 is a globally recognized standard for information security management systems (ISMS). It provides a systematic framework for managing sensitive company information so that it remains secure. This standard is applicable across all sectors and industries, providing a holistic approach to managing information security risks, including third-party management.

ISO 27001's framework is designed to be flexible and adaptable, accommodating organizations of all sizes and complexities. It covers aspects like risk assessment, incident management, third-party management, and continual improvement, ensuring that organizations can safeguard their information assets and respond effectively to evolving security threats.

Scope and applicability

TISAX

TISAX is specifically tailored for the automotive sector. It addresses the unique information security challenges faced by automotive companies, such as threats to connected vehicles, prototype protection, data privacy and supply chain vulnerabilities. The scope of TISAX extends to all companies and suppliers within the automotive supply chain, from manufacturers to service providers, ensuring that they comply with industry-specific security protocols.

TISAX is particularly useful for companies seeking to do business with major automakers, as it serves as a benchmark for information security. The framework promotes a high level of trust and transparency within the supply chain, which is crucial for maintaining business relationships in the automotive industry.

ISO 27001

ISO 27001, on the other hand, is applicable to organizations of any size or industry. It offers a generic framework for managing information security risks, making it versatile across diverse organizational contexts. The standard provides a comprehensive approach to information security management, focusing on confidentiality, integrity, and availability of information assets.

ISO 27001 is well-suited for organizations that want to establish, implement, and maintain an effective ISMS. It is particularly beneficial for organizations that need to demonstrate their commitment to information security to stakeholders, customers, and partners, enhancing their credibility and competitive edge.

Framework and requirements

TISAX

TISAX's framework is based on ISO 27001 principles but incorporates additional automotive-specific requirements to meet the industry's unique security needs. The TISAX assessment criteria align with ISO 27001 while offering further guidance and controls tailored to the automotive sector, such as prototype protection, data privacy, and supplier management.

One key difference is that TISAX emphasizes a standardized assessment model specifically designed for automotive companies, ensuring that all parties are evaluated against the same criteria and promoting consistency in information security practices. TISAX also includes a maturity level concept, with levels ranging from 0 (incomplete) to 5 (optimized). Each required measure should ideally meet at least maturity level 3 (defined), indicating that the process is formally documented and implemented. The framework includes various assessment levels, depending on the sensitivity of the information being protected.

ISO 27001

ISO 27001 adheres to the Annex SL framework, which provides a unified structure for various ISO management systems standards. It encompasses a comprehensive set of requirements covering all aspects of information security, including risk assessment, security controls, incident response, and continuous improvement.

ISO 27001 provides a structured approach to information security management, ensuring that organizations can effectively protect their information assets. The standard emphasizes a risk-based approach, allowing organizations to identify and address their unique security risks in a systematic and prioritized manner, making the standard adaptable to the organization's context.

Assessment and certification

TISAX

TISAX is not a certification standard but a framework for conducting information security assessments within the automotive industry. Companies undergo TISAX assessments to demonstrate compliance with automotive-specific security protocols and requirements, building trust and transparency in the supply chain. The assessment process involves different levels, known as Assessment Levels:

1. Level 1 - Self-assessment.
2. Level 2 - Document review combined with a remote audit.
3. Level 3 - Document review along with an on-site audit.

Each Assessment Level has specific criteria and compliance procedures. Organizations must meet these requirements to pass the assessment, which helps ensure consistent security practices across the automotive supply chain.

ISO 27001

Organizations seeking ISO 27001 certification undergo audits by accredited certification bodies. The certification process involves a thorough evaluation of the organization's ISMS to ensure it meets the standard's requirements. This includes reviewing policies, procedures, and controls and conducting on-site audits.

The ISO 27001 certification process typically involves two stages of audits. In the Stage 1 audit, the auditors review the organization's ISMS documentation and assess its readiness for the Stage 2 audit. The Stage 2 audit involves a detailed evaluation of the implementation and effectiveness of the ISMS, including interviews and evidence gathering.

Maintaining ISO 27001 compliance requires ongoing commitment. Organizations must undergo regular surveillance audits, typically annually, and a recertification audit every three years. These audits ensure that the ISMS remains effective and continues to improve, addressing any evolving risks or changes in the organization.