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12/23/2025

Fiserv faces security issue lawsuit

Payments Dive

Dive Insight:

The payment processor disputed Self-Help’s assertions.

“Fiserv disagrees with the claims and will vigorously defend itself in the lawsuit,” a company spokesperson said in an emailed statement.

Despite an agreement with the credit union to use stringent security, the Milwaukee-based processor relied heavily on email passcodes to access systems that stored the financial institution’s sensitive information, the complaint alleges. 

Self-Help Credit Union is seeking restitution for unspecified fees that it says it paid for enhanced security.

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