21.04.2026

In modern business, the security of payment data directly impacts customer trust. That is why the PCI DSS standard is mandatory for companies that handle card data: it minimizes the risk of data breaches, helps prevent fines, and strengthens business reputation.
However, going through the standard is rarely simple. Businesses often face difficulties related to the complexity of the standard, specifically a lack of understanding of the requirements. Awareness of these challenges is the key to successfully passing a PCI DSS audit.

Problems in PCI DSS implementation

1. Unrealistic expectations regarding implementation timelinesOne of the most common mistakes is unrealistic expectations regarding PCI DSS implementation timelines. Businesses typically plan to complete all standard requirements within 2–3 months. In practice, the process requires more time due to the scope of work: audit preparation, implementation of new processes, system configuration in accordance with PCI DSS requirements, and development of necessary documentation.
Involving experienced experts helps reduce the timeline and avoid typical mistakes. In this case, implementation takes about 4 months rather than 6 months or more.
2. Limited resourcesAssigning responsibility for the audit process to a single person is incorrect and contradicts PCI DSS requirements for the separation of duties. One person physically cannot properly control all processes, which often leads to mistakes and possible fines from banks and international payment systems for violating PCI DSS requirements.
Without a sufficient budget and the necessary team, it is impossible to maintain the standard requirements on an ongoing basis.
3. Lack of accountabilityUnclear roles and responsibilities for the controls required by PCI DSS or for incident handling lead to a loss of process control and increase the risk of audit failure.
4. Incorrect definition of PCI DSS scopePCI DSS allows the audit to cover not the entire company, but only the part that works with payment cards. This helps reduce the workload and preparation time and ensures continuous compliance with PCI DSS requirements. However, during audits, auditors regularly discover systems that were not included in the scope. This increases the duration of the PCI DSS audit, as it becomes necessary to configure appropriate PCI DSS controls for the new systems and implement additional processes.
5. Lack of understanding of what to expect during the auditAnother common mistake is not understanding what exactly the auditor checks. Business owners often assume that it is enough to simply demonstrate system configurations. However, in addition to configurations, the auditor must also be provided with important regulatory documentation and must verify that employees understand PCI DSS requirements and maintain processes on an ongoing basis, not only during the audit.

Therefore, it is crucial to involve experienced specialists in the certification preparation process to make it simpler and more understandable.
6. Lack of documentation (or its formality)The absence of documentation, or its formal “for compliance only” designation, which does not reflect real company processes, violates PCI DSS requirements. The standard requires that all requirements and processes be clearly documented and understandable for staff so that employees can act accordingly and ensure proper data protection.
7. Misconception of PCI DSS as a one-time taskAfter certification, the work does not end: annual audits and quarterly reviews are mandatory. The company must continuously maintain compliance with PCI DSS requirements. In case of violations, banks or payment systems may impose sanctions, especially during investigations of incidents involving payment card data breaches.
8. Lack of qualified specialistsIn many cases, employees do not understand the nuances of the standard and incorrectly interpret its key aspects, particularly regarding scope (scope of coverage in PCI DSS). This most often occurs when working with cloud solutions. As a result, businesses lose time and money correcting mistakes.

Involving qualified specialists helps optimize the certification process and avoid unnecessary costs. It also helps save valuable time, especially when PCI DSS certification is required as quickly as possible.
9. Errors in understanding and interpreting terms (FIM, CDE, SAD, etc.)Such issues lead to difficulties during preparation and during the audit process and disrupt team alignment. This makes the correct interpretation of PCI DSS requirements more difficult and reduces the effectiveness of their implementation.

To avoid such risks, it is better to involve experienced specialists who will provide training and help correctly interpret PCI DSS requirements, which allows proper system configuration and the development of necessary processes.
10. Lack of preparation for QSA interviewsAnother common mistake is when the team is not prepared for interviews with the auditor. Even experienced specialists may interpret internal processes differently or lack a unified understanding of company policies.

As a result, this creates an impression of inconsistency and may affect the audit outcome, even if all processes are correctly configured. That is why it is important to prepare the team in advance and go through the audit together with experts who will help ensure successful PCI DSS certification.
11. Lack of vendor managementBusinesses do not always clearly understand who has access to cardholder data and who qualifies as a TPSP (Third-Party Service Provider) under PCI DSS. The absence of clearly defined responsibility allocation in contracts creates security risks and makes it more difficult to maintain compliance with the standard.

The company must control access to cardholder data. If a vendor does not meet PCI DSS requirements, this directly affects the company's audit results.

Key conclusions

Most problems during PCI DSS implementation arise due to the complexity of the standard, a lack of understanding of requirements, and an underestimation of details. Using a systematic approach combined with the involvement of experienced specialists helps optimize the process, minimize errors, and save time and costs.
Take the first step toward PCI DSS compliance with GetPCI. Fill out a short form on the website and receive high-quality and fast support in preparing for certification and confirming PCI DSS compliance.