Find out why Strike Graph is the right choice for your organization. What can you expect?
Find out why Strike Graph is the right choice for your organization. What can you expect?
TISAX audits can feel overwhelming, but you can succeed with the right approach and tools. This guide shares expert tips on preparing for, undergoing, and passing your TISAX audit. Also, get your free audit checklist.
Key Takeaways:
TISAX audits cover how effectively auto vendors meet information security standards. You determine your objectives and scope, often based on contract requirements. That leads to your audit type and what measures you implement and document to pass the audit.
There are three types of audits in TISAX, or Trusted Information Security Assessment Exchange. Assessment level 1 (AL 1) is a self-assessment mainly for internal purposes. AL 2 is a third-party audit conducted remotely, and AL 3 includes an on-site audit.
Depending on your assessment objectives, audits focus on these key aspects of an organization’s information security:
The TISAX audit assessment scope is location-based, as your partner’s requirements dictate. The assessment objectives you choose for the audit determine your information security management system (ISMS) protection requirements. The type of data you handle determines your TISAX assessment objectives:
Each audit level builds upon the previous one, with self-assessments providing an internal foundation. AL 2 (remote audit) adds a verification layer and documentation review with an ENX-accredited auditor. AL 3 (on-site audit) offers the most comprehensive evaluation of your security controls and processes and takes the most time and resources to complete.
TISAX audits assess an organization's information security management system (ISMS) against the VDA ISA criteria, focusing on three primary areas: information security, prototype protection, and data protection. The depth and scope of the assessment objectives vary based on the type of data you handle.
TISAX responds to the growing need for strong information security in the automotive sector. It helps organizations follow high standards for data protection and maintain trust. The framework offers a transparent and efficient way to evaluate security, allowing companies to share results safely with Original Equipment Manufacturers (OEMs) and other partners in the automotive supply chain.
The 2021 research paper TISAX – optimization of IT risk management in the automotive industry explains that automotive OEMs' exchange of sensitive data, such as design details with supply chain partners and vendors, necessitated the need for a repository of automotive-specific security requirements and simplified verification of accredited partners.
"TISAX enables a mutual acceptance of information security assessments and provides a common evaluation and exchange mechanism," the authors write. "The evaluation results are always under the control of the evaluated company."
TISAX uses a six-point maturity level scale to measure operational effectiveness across more than 100 specific requirements. This scale starts at Level 0, indicating non-existent or ad-hoc processes. It goes up to Level 5, a fully optimized and continuously improving system.
TISAX audits evaluate the maturity of your information security processes, focusing on criteria such as documentation quality, procedural consistency, and integration into business operations. By progressing up the maturity scale, companies demonstrate compliance and a commitment to improving their security posture.
TISAX audits evaluate the following criteria:
TISAX is a vital standard created by the German Association of the Automotive Industry (VDA) and managed by the ENX Association. The VDA designed the TISAX framework to set strong information security standards for the automotive industry. The ENX Association runs the TISAX program, which includes overseeing audit providers and maintaining the ENX TISAX portal for sharing assessment results.
TISAX has three audit types, known as assessment levels. They determine the audit’s approach and rigor. The TISAX assessment levels start at AL 1, a self-assessment that doesn’t result in a TISAX label. In AL 2, an external auditor remotely conducts a document audit. AL 3 includes an on-site audit.
Here is a more detailed breakdown of the TISAX assessment levels:
Each assessment level up to AL 3 increases the scrutiny and verification of security controls. The automaker you’re working with will dictate which assessment level you need to use, says TISAX expert Michael Kirsch. He is a co-founder, board member, and Customer Success Officer at Isegrim X, an information security company specializing in TISAX assessment and audit support.
He states that in Europe, it took about seven years for TISAX to become an industry-wide requirement. Before TISAX, companies without the certification could not deliver services or products to the major automotive OEMs (Original Equipment Manufacturers). Kirsch anticipates a faster adoption timeline in the United States, potentially within the next two to three years. TISAX will become just as essential as security frameworks like ISO 27001, NIST, or SOC 2, but with a specific focus on data protection and prototype security that is unique to the automotive sector.
"The TISAX AL 1 level is a baseline and rarely recognized by major automotive OEMs for potential business partners," says Kirsch. He emphasizes the importance of TISAX AL 3 for most companies due to the time and effort required to achieve it compared to doing AL 2 and then starting over if another OEM partner requires AL 3.
"Always strive for the TISAX Level 3 assessment," says Kirsch. "You can't upgrade from Level 2 to Level 3 without starting the process from the beginning with a new auditor and potentially investing more time and resources in preparation."
Also, Kirsch says the experience of hosting an ENX-accredited auditor on site may provide lasting internal benefits and improvements for your overall information security posture.
Beyond the commercial benefits, Kirsch highlights that implementing a TISAX-compliant ISMS also provides internal advantages.
“TISAX provides a structured ISMS to document risks, processes, and access controls," says Kirsch. "This improved visibility and accountability can benefit your overall security posture and risk management."
For more, see our guide to TISAX assessment levels.
The three types of TISAX audits, or assessment levels, differ in depth, methodology, and validation. These differences directly impact their suitability for different business needs. Each level—AL 1, 2, and 3—serves a unique purpose.
Here is a closer look at the differences between TISAX audit levels:
How TISAX Assessment Levels Differ
Level |
Type |
Corresponding Assessment Objective |
TISAX Label? |
Assessment Level 1 (AL 1) |
Organization performs an internal evaluation using the VDA ISA questionnaire |
Not applicable |
For internal purposes. No TISAX label is awarded |
Assessment Level 2 (AL 2) |
External auditor reviews documentation remotely, verifying compliance with TISAX controls |
Information with High Protection Needs (e.g., Confidential Information, High Availability Data, and Personal Data) |
Yes, label is earned per physical location |
Assessment Level 3 (AL 3) |
In-depth, on-site audit by a TISAX-approved auditor, including physical security verification |
Information with Very High Protection Needs (e.g., Strictly Confidential Data, Very High Availability Data, Prototype Parts, Prototype Vehicles, Test Vehicles, Prototype Events, and Special Data |
Yes, label is earned per physical location |
Selecting the appropriate TISAX audit level requires careful evaluation of your organization's role in the automotive supply chain and specific customer requirements. Here's a systematic approach to making this determination:
It's crucial to assess the sensitivity of the information your company manages and the relevant protection needs to determine the appropriate TISAX audit. TISAX defines three primary protection needs:
Utilizing the TISAX Protection Needs Assessment can help evaluate your organization's specific requirements. Consulting with partners and stakeholders also ensures that the selected audit level aligns with contractual obligations and business objectives.
You can prepare for a TISAX audit by following a recommended series of steps. This includes understanding your security needs and analyzing gaps to see where you fall short. Later steps include implementing the required controls, documenting them, and training your team. Then, schedule your audit.
"You must train every employee for the TISAX-specific requirements by location," says Kirsch. "It's not enough to show that you have an ISMS implemented without documenting security incidents and improving how you communicate policy. The TISAX auditor wants to see incidents recorded. Otherwise, that is a red flag for an audit."
Kirsch says it's often a delicate balance to help companies understand this topic and the audit process, especially at the C-suite and leadership levels.
"You need to prepare your people to be transparent and to produce thorough, honest documentation to achieve TISAX compliance."
Here's a step-by-step guide to prepare for your TISAX audit:
Micah Spieler, Chief Product Officer at Strike Graph, shares some insights to help you effectively prepare for TISAX audits and ensure a smooth certification process:
TISAX follows a structured evaluation process. It starts with ENX registration and auditor selection. From there, you undergo a preliminary assessment and actual audit. The auditor then provides your results. They typically include non-conformities and corrective actions. Successful completion results in a TISAX label.
Here are the phases of the TISAX audit process in detail:
This detailed checklist, developed from VDA ISA criteria and industry best practices, will help you prepare for your audit, regardless of the assessment objectives and TISAX level you're pursuing. Use it to track your progress and assign responsibilities during your TISAX audit preparation.
Download a comprehensive TISAX audit checklist
Implementing TISAX requirements and undergoing your audit can take 12-15 months or more. Audit timelines vary significantly based on your current information security maturity, company size and type of work, and level of preparation.
Kirsch explains that implementing a TISAX-compliant Information Security Management System (ISMS) often requires a 12-month project timeline. This timeline is necessary to go through a Plan-Do-Check-Act (PDCA) cycle, which includes preparing the documentation, implementing the processes, reviewing the implementation, and conducting an internal audit.
For larger organizations with more complex structures and "kingdoms" (separate IT, HR, and legal departments), there are more moving parts requiring further coordination.
Once you start the actual TISAX audit process, you will score each TISAX requirement and document "no findings," "minor findings," or "major findings." Kirsch advises that you should expect to uncover at least some "minor findings" before submitting the documentation to the TISAX auditor, as no findings are a red flag for the audit review. He recommends creating a pre-prepared corrective action plan to streamline the external TISAX audit process and increase the chances of obtaining the desired temporary TISAX label.
Having ISO 27001 compliance provides a head start on TISAX, and hiring an experienced consultant can also speed up the process.
According to Kirsch, an internal resource untrained in TISAX and ISO 27001 might take approximately 200 days to get up to speed and implement the standard ISMS requirements. However, an experienced consultant only needs around 50 days to implement the ISMS and prepare for the TISAX audit.
"The difference between the ISO 27001 and TISAX is the difference in ISMS implementation and ISMS operational maturity," says Kirsch. "We need to establish that you have guidelines and standards in place, process plans and documentation, and you have quality process performance records. There must be evidence that you are fulfilling different processes and achieving different outcomes to achieve the maturity level score required for TISAX AL 2 or AL 3."
The cost of preparing and undergoing a TISAX audit varies widely. Factors include your organization’s security maturity, resources, and assessment level. AL 3, which includes an on-site physical audit, typically costs 15-20% more than AL 2.
Corrective actions required by the audit also can raise costs. Investment in proper preparation can significantly reduce overall costs by minimizing the need for reassessment or extended audit timeframes. It’s common to invest in experienced TISAX consultants to help expedite the process.
Consider allocating a percentage of your overall project budget for contingencies and unexpected requirements:
One common TISAX challenge is documenting your security controls. Auditors need clear evidence that security measures are implemented and followed. However, these new measures can also cause disruptions in a company. That becomes a second challenge.
"Knowing where to go to get guidance for your information can save you a lot of issues and hassle, especially for a newer, less adopted framework like TISAX with stringent documentation requirements," says Spieler. "This is why identifying a creditable TISAX partner early is important. Our customers don't want to get slowed down by accessing the wrong documentation. They want a source of truth, a central knowledge base, where they know the right information is being presented."
Spieler highlights the importance of having a trusted partner since the security community does not currently have as many public resources and professional guidance for TISAX requirements compared to more established and widely adopted frameworks like SOC 2 and ISO 270001.
Kirsch adapts to the client's existing systems and processes and helps clients establish templates and processes within their existing environment to ensure their documentation meets stringent TISAX requirements.
"Keep it simple with documentation. Use whatever makes the work easier for you," says Kirsch. "Whatever system or tool that records dates, tracks changes, versions, and review cycles, we'll use that."
The key is to work within your comfort zone and existing infrastructure if you're confident your documentation management will satisfy TISAX compliance requirements. If you lack systems or tools to manage information security documentation successfully, you may need to plan for more time and resources during the TISAX audit preparation phase.
Understanding some of the other common pitfalls of the TISAX audit process can help you prepare more effectively and avoid unnecessary delays or complications:
Kirsch identifies a few more key areas where companies often fall short:
As a consultant, Kirsch recommends you address these gaps with the following:
As with any security framework, there’s a lot of information to process and work to do. It may be daunting to approach TISAX for the first time, but it doesn’t have to be.
Strike Graph’s comprehensive compliance platform helps automotive companies and vendors prepare for and achieve TISAX in simple, manageable steps. You design, operate, and measure your security program all in one place — making TISAX compliance far quicker and cheaper than it has ever been with traditional approaches.
Navigating the TISAX audit process can raise numerous questions. Below, we address some of the most common inquiries to help clarify the audit process, requirements, and best practices.
TISAX audits are conducted by auditors authorized by ENX. These auditors assess organizations against TISAX standards. Visit the ENX Association's website to find a provider.
External TISAX audits are typically conducted every three years. However, annual internal audits can help identify any gaps sooner. It's essential to keep up your TISAX label.
TISAX benefits include eligibility for automaker contracts and partner trust. You can unlock business growth in the global auto supply chain.
TISAX audits are valid for three years. However, some assessment objectives may require annual surveillance audits. This includes AL 3 and prototype protection.
Yes, you can initially fail to meet TISAX requirements. However, the process allows for corrective actions. If gaps are identified, you'll receive time to implement necessary improvements before the final result.
Yes, for Level 3 audits. AL 3 includes an on-site audit for each company location.
Yes, you can change audit providers, but this usually results in starting the process over. It's recommended that you select your auditor carefully to avoid delays and additional costs.
TISAX scope expansions require a new assessment for the extra elements. However, your existing label remains valid.
TISAX is based on ISO 27001 but includes measures specific to auto vendors. These include physical security, incident management, and access control.
"ISO 27001 focuses on establishing and maintaining your ISMS against international standards," says Kirsch. TISAX emphasizes the operational effectiveness and maturity of your ISMS. You must demonstrate that the controls are in place and that they are consistently applied and optimized for the automotive industry."
Yes, TISAX operates on a sharing model. Once certified, you can authorize specific participants to view your results through the ENX portal.
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We look forward to helping you with your compliance needs!