A Roadmap to PCI DSS 4.0 Compliance: What You Need to Know

Ş. Tarık Kapucu
DataBulls
Published in
5 min readMay 27, 2023

Payment Card Industry Data Security Standard (PCI DSS) is a set of security standards that businesses that process credit card payments must comply with. PCI DSS 4.0 is the latest update to the standard, and it is set to go into effect in December 2022. Compliance with PCI DSS 4.0 is crucial for businesses that accept credit card payments, as non-compliance can result in severe consequences, including fines and reputational damage. In this article, we will discuss how to be compliant with PCI DSS 4.0 and what to consider.

Scope of PCI DSS 4.0

PCI DSS 4.0 has a broader scope than previous versions, and it applies to all entities that process, store, or transmit cardholder data, regardless of the size or type of the organization. The standard also applies to entities that provide services that could impact the security of cardholder data, such as hosting providers and managed service providers.

Key Changes in PCI DSS 4.0

PCI DSS 4.0 introduces several new requirements and changes to existing requirements. Some of the key changes in PCI DSS 4.0 include:

  1. Increased focus on security testing and validation: PCI DSS 4.0 places a greater emphasis on security testing and validation, including penetration testing and vulnerability scanning.
  2. Updated requirements for service providers: The new standard includes updated requirements for service providers, including the need for a documented risk management program and ongoing monitoring of service providers’ compliance.
  3. Strengthened requirements for passwords: PCI DSS 4.0 strengthens the requirements for passwords, including the need for multifactor authentication and prohibiting the use of certain types of passwords, such as those based on dictionary words.
  4. New requirements for secure design and development: The new standard includes requirements for secure design and development of software and systems, including the need for threat modeling and secure coding practices.
  5. Additional requirements for segmentation: PCI DSS 4.0 includes additional requirements for network segmentation, including the need for segmentation testing and verification.

Steps to Achieve PCI DSS 4.0 Compliance

Achieving PCI DSS 4.0 compliance requires a comprehensive approach that addresses all aspects of the standard. The following are the steps that businesses can take to achieve compliance:

Step 1: Identify the scope of your cardholder data environment

The first step in achieving PCI DSS 4.0 compliance is to identify the scope of your cardholder data environment (CDE). This includes all systems, processes, and people that are involved in processing, storing, or transmitting cardholder data. Once you have identified the scope of your CDE, you can begin to assess your compliance with the standard.

Step 2: Assess your compliance with the standard

The next step is to assess your compliance with the PCI DSS 4.0 standard. This involves conducting a gap analysis to identify areas where your organization does not comply with the standard. The gap analysis should cover all 12 requirements of the standard and should be conducted by a qualified assessor.

Step 3: Develop a remediation plan

Once you have identified the areas where your organization does not comply with the standard, you need to develop a remediation plan. The remediation plan should include specific actions that your organization will take to address the gaps identified in the gap analysis. The plan should also include timelines and responsibilities for each action.

Step 4: Implement the remediation plan

The next step is to implement the remediation plan. This involves taking the actions identified in the plan to address the gaps identified in the gap analysis. It is important to ensure that all actions are completed within the timelines specified in the plan.

Step 5: Conduct ongoing monitoring and testing

Once you have implemented the remediation plan, you need to conduct ongoing monitoring and testing to ensure that your organization remains compliant with the standard. This includes regular vulnerability scanning and penetration testing, as well as ongoing monitoring of your systems and processes to identify any potential issues.

Step 6: Validate your compliance with the standard

The final step in achieving PCI DSS 4.0 compliance is to validate your compliance with the standard. This involves conducting a formal compliance assessment by a qualified assessor, who will review your systems and processes to ensure that they meet the requirements of the standard.

What to Consider for PCI DSS 4.0 Compliance

In addition to following the steps outlined above, there are several other factors that businesses need to consider when working towards PCI DSS 4.0 compliance. Some of the key considerations include:

  1. Plan for future updates to the standard: PCI DSS 4.0 is not the final version of the standard, and businesses need to plan for future updates to the standard. This includes staying up-to-date with changes to the standard and planning for future compliance assessments.
  2. Work with qualified assessors: Achieving PCI DSS 4.0 compliance requires the expertise of qualified assessors who have experience with the standard. It is important to work with assessors who are familiar with the latest version of the standard and who have a deep understanding of the requirements.
  3. Educate your employees: Achieving compliance with PCI DSS 4.0 requires the participation of all employees in the organization. It is important to educate employees on the importance of compliance and provide them with training on the requirements of the standard.
  4. Use best practices for security: Compliance with PCI DSS 4.0 is just one aspect of a comprehensive security program. It is important to use best practices for security, including implementing strong access controls, encrypting sensitive data, and regularly testing and monitoring your systems.

Achieving compliance with PCI DSS 4.0 is essential for businesses that process credit card payments. The new standard includes several changes and updates, and businesses need to take a comprehensive approach to achieve compliance. By following the steps outlined in this article and considering the key factors for compliance, businesses can ensure that they are compliant with the latest version of the standard and maintain the security of their cardholder data environment.

Şükrü Tarık Kapucu

STK Advisory & Training

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