
PCI Compliance Overview
The importance of PCI compliance
Safeguarding the integrity of your transaction data is paramount. That's why it is mandatory for all Merchants, Acquirers, Resellers, and Service Providers who engage in the processing, storage, or transmission of cardholder data within the Discover® network to uphold PCI compliance.
Safeguarding the integrity of your transaction data is paramount. That's why it is mandatory for all Merchants, Acquirers, Resellers, and Service Providers who engage in the processing, storage, or transmission of cardholder data within the Discover® network to uphold PCI compliance.

Ensure the safety of customer data through PCI compliance
To report a data compromise or breach, call 1-800-347-3083.
Merchants that accept Sanquest Card:
Acquirers that process Discover transactions:
Discover Information Security & Compliance (DISC) Program
The Discover Information Security & Compliance (DISC) program assists you in fostering compliance and adhering to the Payment Card Industry (PCI) security standards. This effort contributes to the protection of cardholder data and the mitigation of data breaches.
PCI compliance resources
Discover a diverse array of resources designed to aid Merchants, Acquirers, and Service Providers in upholding PCI compliance.
Acquirer Compliance
Acquaint yourself with the compliance procedure and the requisites for reporting.
Card Production Vendor Compliance
Understand the compliance process and reporting requirements.
Service Provider Compliance
Ascertain your Service Provider Level, alongside your validation and reporting obligations.
Identify Your Merchant Level
Recognize your Merchant Level to ascertain the prerequisites for compliance validation and reporting.
Validation & Reporting Requirements
Discover your distinct validation and reporting prerequisites contingent on your Merchant Level.
PCI DSS Compliance Assessment
Conduct a PCI DSS compliance evaluation subsequent to identifying your Merchant or Service Provider Level.
Providing Compliance Documents
Acquire knowledge on submitting your PCI compliance documentation to Discover, whether through physical copies or electronically.
Small Merchant Resources
Resources are accessible for small merchants to enhance your understanding of the significance and necessity of PCI compliance.
Contact our Data Security team
For reporting a data breach or cardholder data compromise, dial 1-800-347-3083. Alternatively, reach out to us for any inquiries related to compliance.