PCI Compliance Levels

If you can limit the amount of cardholder data you have, you'll have fewer data to audit.

The PCI DSS scope of a business or organization includes all people, processes, and technologies that can affect and interact with cardholder data security.

DNS security best practices are similar to those for most other systems. Restrict access, utilize multi-factor authentication (MFA), activate security settings, and maintain everything up to date.

The PCI DSS requirements apply to all system components, including people, processes and technologies that store, process or transmit cardholder data or sensitive authentication data, included in or connected to the cardholder data environment.

The firewall rule base must be reviewed at least quarterly and the change management process created to add and push the policy to the firewall.

Vulnerabilities are constantly found by malicious individuals and researchers, and new software is introduced to them. System components, processes, and custom applications should be periodically reviewed to ensure an evolving environment continues to represent security controls.