DataBreachInformation.com
MonitoringCalifornia AG filing · September 11, 2026

Suffolk Federal Credit Union Reports Data Breach in California

Suffolk Federal Credit Union filed a data breach notice in California concerning an incident from September 2025. The filing indicates that sensitive personal information, including financial account details, was exposed. Individuals who receive notification should review their accounts for unusual activity.

State
California
Breach date
September 17, 2025
Reported
September 11, 2026

What may have been exposed

  • Full Name
  • Social Security Number
  • Financial Account Number
  • Date of Birth
  • Routing Number
  • Credit Score Information
  • Transaction History
  • Mailing Address

Suffolk Federal Credit Union recently reported a data security incident to California regulators. This filing, made on September 11, 2026, concerns an event that occurred on September 17, 2025. The nature of the breach was not specified in the public record.

According to official reports, the exposed data types include Full Name, Social Security Number, Financial Account Number, Date of Birth, Routing Number, Credit Score Information, Transaction History, and Mailing Address. These details were identified in the filing associated with the incident.

The compromise of such detailed personal and financial information could pose various risks. Affected individuals may face increased vulnerability to identity theft or financial fraud if this data is misused. It is important for those impacted to understand the types of information involved.

Individuals who receive an official notification letter regarding this incident are advised to take protective measures. This commonly includes closely monitoring financial account statements and credit reports for any unauthorized transactions or suspicious activity. Placing a fraud alert or security freeze on credit files can also help prevent new accounts from being opened fraudulently.

Data security incidents affecting financial institutions highlight the ongoing need for vigilance. Maintaining awareness of account activity and understanding the potential risks associated with exposed data is a recommended practice for all consumers. This information is based on public records filed with regulatory bodies.

Source: California Attorney General filing

More California data breach cases