Fraud & Security

Protect your business and your cardholders

Need assistance now?

Report suspected fraud

Call 1-800-347-1111

Authorization Code — 10

Report a data compromise or breach

Call 1-800-347-3083

Report an Internet merchant's misuse of intellectual property

Email riskoperations@discover.com

Products & Tools

Learn about fraud prevention solutions for e-commerce, mobile and in-store transactions.

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Features & Programs

Review an array of standard security features and informative programs.

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Fraud Prevention Best Practices

Learn best practices for how to prevent and detect card-present and card-not-present fraud.

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PCI Rules & Regulations

Stay up to date on PCI compliance rules and regulations to help protect sensitive cardholder data.

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Fraud & Security FAQs

Get helpful answers to the most common questions about fraud and compliance.

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