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PCI DSS stand for the Payment Card Industry Data Security Standard and was adopted by the payment card brands for the protection of cardholder data being processed, stored, and/or transmitted. The standard encompasses numerous controls in support of the following 12 primary control objectives:

GOALSPCI DSS Control Objectives
Build & Maintain a Secure Network1. Install and maintain a firewall configuration to protect cardholder data
2. Do not use vendor-supplied defaults for system passwords and other security parameters
Protect Cardholderdata3. Protect stored cardholder data
4. Encrypt transmission of cardholder data across open, public networks
Maintain a Vulnerability Management Program5. Use and regularly update anti-virus software or programs
6. Develop and maintain secure systems and applications
Implement Strong Access Control Measures7. Restrict access to cardholder data by business need to know
8. Assign a unique ID to each person with computer access
9. Restrict physical access to cardholder data
Regularly Monitor and Test Networks10. Track and monitor all access to network resources and cardholder data
11. Regularly test security systems and processes
Maintain an Information Security Policy12. Maintain a policy that addresses information security for all personnel


Qualified Security Assessors (QSA) are certified by the PCI Security Standards Council to perform assessments to determine compliance with PCI DSS. Each payment card brand (i.e., Visa, MasterCard, American Express, and Discover) has their own program for PCI DSS compliance, validation requirements, and overall enforcement. The quantity of annual payment card transactions is the primary driver for determining whether a certified QSA is required to perform your assessment. All entities processing card payments will fall under 1 of 4 categories. The following are the current gross transaction levels for Merchant Levels 1-4.

Transaction Threshold
(greater than or equal to:)
Merchant Levels VisaMasterCardMasterCardDiscover
Level 16,000,0006,000,0002,500,0006,000,000
Level 21,000,000 to 5,999,9991,000,000 to 5,999,99950,000 to 2,499,9991,000,000 to 5,999,999
Level 320,000 to 999,99920,000 to 999,999Less than 50,000Less than 50,000
Level 4Less than 20,000Less than 20,000N/ALess than 20,000

Merchants falling under the Merchant Level 1 category are required to engage a QSA to perform the PCI DSS assessment and submit a Report on Compliance (ROC).

Visa – Merchants

Visa – Service Providers