To achieve PCI DSS Level 4 compliance, your business must have a payment card industry data security standard (PCI DSS) level 4 merchant ID.
A Level 4 merchant processes up to 20,000 transactions per year.
What is PCI DSS Level 4?
PCI DSS Level 4 is for merchants who handle fewer than 20,000 transactions per year.
These merchants are considered to be at a lower risk level, and as a result, they have fewer compliance requirements to meet.
To determine your PCI DSS level, you can refer to the table below:
- Level 1: Merchants processing over 6 million card transactions per year.
- Level 2: Merchants processing 1 to 6 million transactions per year.
- Level 3: Merchants handling 20,000 to 1 million transactions per year.
- Level 4: Merchants handling fewer than 20,000 transactions per year.
The Four Levels
There are four levels of PCI compliance, each with its own set of requirements. Merchants processing over 6 million card transactions per year are classified as Level 1.
The other levels are determined by the number of transactions processed. Merchants processing 1 to 6 million transactions per year are classified as Level 2.
Merchants handling 20,000 to 1 million transactions per year are classified as Level 3. This level is a significant milestone for many businesses.
Merchants handling fewer than 20,000 transactions per year are classified as Level 4. This is the lowest level of PCI compliance.
Here's a summary of the four levels:
These levels are used to determine the requirements for PCI compliance, which is essential for protecting sensitive cardholder data.
What Is PCI DSS
PCI DSS stands for Payment Card Industry Data Security Standard, a set of rules designed to ensure that companies handling credit card information keep it safe.
This standard was created by the major credit card companies, including Visa, Mastercard, and American Express, to protect cardholders from identity theft and fraud.
The PCI DSS standard is a comprehensive framework that outlines 12 main requirements for maintaining secure credit card data.
These requirements cover everything from encrypting sensitive data to regularly updating security systems.
The standard also requires companies to have a robust security policy in place, which includes procedures for handling card data and responding to security incidents.
Companies that handle credit card information must also have a Qualified Security Assessor (QSA) perform an annual on-site security assessment.
Business Compliance
To ensure your business is PCI DSS level 4 compliant, you need to understand the 12 requirements of PCI DSS. These requirements are split into six different categories.
You should establish who in your organisation is responsible for overseeing the PCI DSS compliance project, having an individual or team responsible for managing compliance means it won't be overlooked.
The PCI Security Standards website has many useful guides to help you better understand PCI compliance and how to perform a self-assessment, including a self-assessment questionnaire.
To ensure your business is compliant with PCI DSS, there are a few key steps to follow: install and maintain a firewall configuration to protect cardholder data, do not use vendor-supplied defaults for system passwords and other security parameters.
You should undertake a self-assessment to see whether your business is adhering to PCI DSS requirements and identify where your weaknesses lie and where you can improve.
The 12 requirements of PCI DSS are:
- Install and maintain a firewall configuration to protect cardholder data
- Do not use vendor-supplied defaults for system passwords and other security parameters
- Protect stored cardholder data
- Encrypt transmission of cardholder data across open, public networks
- Use and regularly update anti-virus software or programs
- Develop and maintain secure systems and applications
- Restrict access to cardholder data by business need to know
- Assign a unique ID to each person with computer access
- Restrict physical access to cardholder data
- Track and monitor all access to network resources and cardholder data
- Regularly test security systems and processes
- Maintain a policy that addresses information security for all personnel
You should regularly test security systems and processes to ensure your business is PCI DSS compliant.
Security Measures
To ensure PCI DSS level 4 compliance, implementing robust security measures is crucial. Regularly testing security systems and processes is vital to maintain security, so all systems and processes must be tested on a frequent basis.
Vulnerabilities are being discovered continually by malicious individuals and researchers, so it's essential to stay one step ahead. The following periodic activities are required:
- Wireless analyser scan to detect and identify all authorized and unauthorized wireless access points on a quarterly basis.
- All external IPs and domains exposed in the CDE are required to be scanned by a PCI Approved Scanning Vendor (ASV) at least quarterly.
- Internal vulnerability scan must be conducted at least quarterly.
- All external IPs and domains must go through exhaustive Application penetration test and Network penetration test at least yearly or after any significant change.
File monitoring is a necessity, too. The system should perform file comparisons each week to detect changes that may have otherwise gone unnoticed.
To protect cardholder data, it's essential to restrict physical access to systems with cardholder data. Use of video cameras/electronic access control to monitor entry and exit doors of physical locations such as data centre is required.
You need to implement an access process that allows distinguishing between authorized visitors and employees. All removable or portable media containing the cardholder data must be physically protected. It is necessary to destroy all media when the business no longer needs.
Implementing strong access control measures is also crucial. This includes restricting access to cardholder data by business need-to-know, assigning a unique ID to each person with computer access, and restricting physical access to cardholder data.
Information Security Policy for All Personnel
As part of your PCI DSS Level 4 implementation, it's essential to establish a comprehensive information security policy that covers all personnel. This policy should address information security for employees and contractors.
To ensure everyone understands their roles and responsibilities, your policy should be clear and concise. It's crucial to communicate this policy to all personnel, including new hires and contractors.
Here are some key points to include in your policy:
- Employee responsibilities for handling cardholder data
- Contractor requirements for accessing cardholder data
- Consequences for non-compliance with the policy
By having a well-defined information security policy, you'll be able to maintain a secure environment and reduce the risk of security breaches.
Implementation and Validation
Implementing and validating PCI DSS requirements for a Level 4 organization is a crucial step in ensuring compliance.
You'll need to implement specific security controls, such as access controls to limit unauthorized access to cardholder data, system patching to protect your environment, encryption, and monitoring.
The PCI Self-Assessment Questionnaire can help you cover all the necessary steps.
Your acquiring bank may impose additional requirements before declaring your organization's compliance level, so be sure to review their specific requirements.
Banks bear the brunt of noncompliance fines from card brands, so it's essential to work with them to ensure you meet all the necessary standards.
Updating the Standards
Updating the standards is a crucial part of staying secure and compliant with the Payment Card Industry Data Security Standard (PCI DSS) version 4.0. This new version of the standard was released on March 31, 2022, and it's essential to understand the key changes and updates.
The initial changes to PCI DSS v4.0 are already in effect from March 31st, 2024, and they focus on strengthening defenses against evolving threats and vulnerabilities. These changes address software vulnerabilities in payment processing applications or systems, sophisticated cyber attacks like malware, phishing, and social engineering attacks targeting payment systems, and insider threats posed by employees, contractors, or third-parties with access to payment data.
The new standard includes 13 new broad requirements that revolve around protecting cardholder data, maintaining a vulnerability management program, implementing strong access controls, regularly monitoring and testing networks, and maintaining an information security policy. These requirements will be fully considered as part of a PCI DSS assessment after March 31, 2025.
Some of the key updates in PCI DSS v4.0 include additional authentication controls, such as strict multi-factor authentication requirements when accessing the cardholder data environment, updated password requirements, and changing requirements around shared, group, and generic accounts. These updates aim to enhance payment validation methods and procedures.
Here's a summary of the key changes in PCI DSS v4.0:
- The introduction of 13 new broad requirements by March 31st, 2024.
- These 13 requirements revolve around protecting cardholder data, maintaining a vulnerability management program, implementing strong access controls, regularly monitoring and testing networks, and maintaining an information security policy.
- A further 51 new technical requirements to be implemented by April 2025.
- Updated Self-Assessment Questionnaires (SAQ) to reflect the evolving payment security landscape, with additional requirements to address emerging threats.
Level Validation
Level validation is a crucial step in the PCI compliance process. Depending on your level, you'll either need to complete a Self-Assessment Questionnaire (SAQ) or undergo annual audits by qualified security assessors.
Banks and card brands often impose additional requirements before declaring your organization's compliance level. This is because they bear the brunt of noncompliance fines before passing them on to you.
To determine your merchant compliance level, you'll need to complete a Self-Assessment Questionnaire (SAQ). This will help you identify your level and ensure you're on the right track for PCI compliance.
There are four levels of compliance: level 1, 2, 3, and 4. Each level requires a different approach to validation, with level 1 requiring annual audits and the others using SAQs.
Here's a breakdown of the four levels:
Before you can even think about validation, you need to conduct a risk assessment. This will help you identify vulnerabilities and potential data breaches.
Customized Approach for Implementation and Validation
The customized approach for implementation and validation is a game-changer for organizations looking to meet PCI DSS requirements in a more flexible way.
This approach provides organizations with the flexibility to meet security objectives using new technology and innovative controls, allowing them to meet strict requirements in a more customized and flexible way.
The assessor will validate that the customized controls meet the PCI DSS requirements by reviewing the entity's customized approach documentation, including a controls matrix and targeted risk analysis.
Customized controls are not compensating controls, but rather a flexible alternative to meeting strict requirements.
Here's a key difference between customized controls and compensating controls:
Organizations can now implement customized controls to meet PCI DSS requirements, giving them more flexibility in their approach to compliance.
The customized approach is a result of the PCI Security Standards Council's efforts to provide organizations with more flexibility in meeting security objectives.
Staying Compliant
You should undertake a self-assessment to see whether your business is adhering to PCI DSS requirements.
The PCI Security Standards website has a self-assessment questionnaire that can help you better understand PCI compliance and identify areas for improvement. You can find it at https://www.pcisecuritystandards.org/merchants/.
Establishing a person or team to oversee PCI DSS compliance is crucial to ensure it doesn't get overlooked. Having a dedicated individual or team will help you stay on track and maintain compliance.
To ensure your business stays up-to-date with the latest version of PCI DSS, it's essential to keep an eye on updates from the PCI SSC. With on-staff PCI DSS experts, you'll be alerted to any updates that might affect your business.
Requesting a demo of a platform like Secureframe can help you achieve and maintain PCI compliance with speed and ease.
Helpful AI assistant
As a helpful AI assistant, I'm here to guide you through the process of achieving PCI DSS Level 4 compliance. To start, you'll need to meet the 12 requirements outlined by the PCI SSC, which are divided into six broader goals.
A key aspect of these requirements is ensuring secure network configurations. This involves installing and maintaining a firewall configuration, as well as using original system passwords instead of vendor-supplied ones.
To protect cardholder data, you must ensure it is stored securely and transmitted across public networks is encrypted. This is crucial for preventing data breaches and maintaining customer trust.
Regular updates to anti-virus software are also essential for protecting against malicious software. Additionally, you must develop and maintain secure systems and applications to prevent vulnerabilities.
Access control is another critical aspect of PCI DSS compliance. This includes restricting access to cardholder data to a business need-to-know basis, assigning unique IDs to individuals with computer access, and restricting physical access to cardholder data.
Here's a breakdown of the six categories and 12 requirements for PCI DSS 4.0:
By following these requirements and guidelines, you'll be well on your way to achieving PCI DSS Level 4 compliance and protecting your customers' sensitive information.
Sources
- https://www.controlcase.com/what-are-the-12-requirements-of-pci-dss-compliance/
- https://www.imperva.com/learn/data-security/pci-dss-certification/
- https://www.cimcor.com/blog/a-beginners-guide-to-the-pci-compliance-levels
- https://www.metomic.io/resource-centre/a-guide-to-pci-compliance
- https://secureframe.com/blog/pci-dss-4.0
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