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MonitoringCalifornia AG filing · September 11, 2026

Suffolk Federal Credit Union Reports Data Breach to California AG

Suffolk Federal Credit Union reported a data security incident on September 11, 2026, stemming from an event that occurred on September 17, 2025. This breach exposed a range of sensitive personal and financial data, necessitating vigilance from affected individuals to protect against potential identity fraud.

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 has filed notice with California authorities regarding a data security incident. The credit union reported the breach on September 11, 2026, concerning an event that occurred on September 17, 2025. The investigation into the incident is currently ongoing, with the credit union stating it is in a monitoring status.

The reported exposed data categories include Full Name, Social Security Number, Financial Account Number, Date of Birth, Routing Number, Credit Score Information, Transaction History, and Mailing Address. The compromise of such comprehensive personal and financial details can carry significant risks for individuals, potentially leading to various forms of fraud and identity theft.

Individuals who receive notification about this incident should take proactive steps to safeguard their information. It is advisable to regularly review financial account statements for any unauthorized activity and to obtain copies of credit reports from the major credit bureaus to check for suspicious inquiries or accounts. Additionally, consider placing a fraud alert or a security freeze on your credit files to prevent new accounts from being opened in your name.

Exercise caution regarding unsolicited communications, such as emails, phone calls, or text messages, that claim to be from Suffolk Federal Credit Union or other financial institutions. These could be phishing attempts designed to trick you into revealing more personal information. All details regarding this data breach are derived from official public filings made by Suffolk Federal Credit Union.

Source: California Attorney General filing

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