Contact Information for Financial Institutions

To contact us, simply dial the appropriate number below. To send a message online, please complete the form below and a Discover Network representative will contact you as soon as possible.

Debit Issuer

1-877-433-3248


Prepaid Issuer

1-866-402-1042


Dispute Mutual Assistance

Log in to access the Contact Directory


Fraud & Security Department

Please call 1-800-347-6634 to speak to a Discover fraud prevention specialist.


Global Compliance

Please contact us if you detect or witness suspicious activity on or involving Discover Network cards, products, and/or transactions or if you become aware of such activity and have questions.

dfsactivity@discover.com

Discover Guardian

To get technical assistance or report an issue with Discover Guardian, please call 1-800-473-5570, 24 hours a day, 7 days a week. Select "Discover Network", then "All Other Issues" from the automated menu.


For help with resetting your Fraud & Risk Center Log In ID and/or Password or for more information, please email us at globalfraudsolutions@discover.com.

 

Note: When emailing us, please do not share personal, sensitive or confidential information.

Account Incident Manager

To get technical assistance or help with resetting your Fraud & Risk Center Log In ID and/or Password, call 1-800-347-0240.


For more information, please email us at  globalfraudsolutions@discover.com.

 

Need access to Account Incident Manager (AIM)?

Please download the form and email the completed and signed original paper version of this form to us.

Download Application (PDF)

 

Note: When emailing us, please do not share personal, sensitive or confidential information.

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