Creating a template for an inventory example, suitable as evidence for PCI DSS v4.0 Requirement 4.2.1.1, involves compiling a detailed and comprehensive list of system components and software that are involved in the processing, storage, or transmission of cardholder data, or that could impact the security of the cardholder data environment (CDE). This inventory serves as a foundational element for ensuring that all necessary security controls are applied appropriately. Here's a template outline for a System Component and Software Inventory: --- **[Company Name]** **System Component and Software Inventory** **Document Version:** [Version Number] **Date:** [Date] **1. Introduction** 1.1. Purpose of the Inventory 1.2. Scope of the Inventory 1.3. Responsibility and Maintenance of the Inventory **2. Inventory of System Components** - **2.1. Network Devices** - Inventory ID - Device Type (Router, Switch, Firewall, etc.) - Model/Version - Location - Function/Purpose - Access Control List/Network Segmentation Details - **2.2. Servers** - Inventory ID - Server Type (Web Server, Database Server, etc.) - Operating System and Version - Location - Function/Purpose - Access Control Details - **2.3. Workstations and End-User Devices** - Inventory ID - Device Type - Operating System and Version - User Assignment - Location - Function/Purpose **3. Inventory of Software Applications** - **3.1. Business Applications** - Inventory ID - Application Name - Version - Purpose/Use in CDE - Data Stored/Processed/Transmitted - **3.2. Security Tools and Utilities** - Inventory ID - Tool Name - Version - Purpose/Use in CDE - Data Stored/Processed/Transmitted **4. Cardholder Data Environment (CDE) Mapping** - 4.1. Correlation of System Components to CDE - 4.2. Data Flow Diagram References **5. Change Management Integration** - 5.1. Process for Updating Inventory - 5.2. Frequency of Inventory Updates - 5.3. Integration with Configuration Management Database (CMDB) **6. Review and Validation** - 6.1. Regular Review Schedule - 6.2. Validation and Verification Process **7. Approval and Acknowledgement** - 7.1. Approval Authority - 7.2. Document Revision History **Appendix A: Detailed Network Diagrams** - Network Topology - Data Flow Diagrams **Appendix B: Change Log** - History of Inventory Updates and Revisions --- This document serves as a template and should be adapted to include all relevant details specific to your organization's IT infrastructure and the cardholder data environment. The inventory should be maintained and updated regularly to reflect any changes in the environment, and it should be readily available for review during PCI DSS compliance assessments.