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Case file

Case File: OneMain Financial Data Breach

This file collects the dated facts on record for the OneMain Financial incident. The state report is dated September 28, 2026. The incident itself is dated May 5, 2026.

Timeline

146 days separate the incident date from the date it was reported.

  1. May 5, 2026Incident dateWhen the filing says the breach took place.
  2. September 28, 2026Report filed in OregonDate the notice was lodged with the Oregon Attorney General.

Case facts

Filing state
Oregon
Date reported
September 28, 2026
Incident date
May 5, 2026
Receiving office
Oregon Attorney General

Data categories in the file

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

Case notes

OneMain Financial, a consumer finance company, filed a data breach report with the State of Oregon, indicating a security incident that was detected on May 5, 2026. The official report was submitted on September 28, 2026, and the investigation status is currently listed as monitoring.

The breach compromised sensitive personal data, including Full Name, Social Security Number, Date of Birth, Financial Account Number, Routing Number, Credit Score Information, Loan Transaction History, and Mailing Address. These data types are routinely collected by OneMain Financial as part of its operations to evaluate creditworthiness and manage loan portfolios.

Exposure of this combination of personal and financial information poses significant risks. Individuals whose data was compromised may face an elevated threat of identity theft, unauthorized account access, and various forms of financial fraud. Criminal actors could potentially leverage this data for new credit applications, tax fraud, or to compromise existing financial accounts.

Individuals who receive a notification regarding this incident should promptly review their financial statements and credit reports for any suspicious or unauthorized activity. Placing a fraud alert or security freeze on credit files with the major credit bureaus (Equifax, Experian, TransUnion) is a widely recommended step to help prevent unauthorized credit accounts from being opened.

Additionally, it is advisable to change passwords for online accounts, especially those linked to financial services, and to remain vigilant against phishing attempts via email, text messages, or phone calls. Be cautious of any unsolicited communications asking for personal or financial details.

This information is derived from public filings made by OneMain Financial with regulatory authorities in Oregon, detailing the nature of the reported security event.

Questions about this case file

Where does the OneMain Financial case file come from?
Every entry is taken from the breach report OneMain Financial lodged with the Oregon Attorney General. Nothing here is estimated.
Why do the incident date and the report date differ?
Companies usually investigate before they report. The gap between the two dates shows how long that took.
What does the records-affected figure count?
It is the number the company gave the state. It can cover residents of that state only, so the national total may be higher.
Does this case file change over time?
Yes. When a company files an update or a new state publishes its copy of the report, the dates and counts here are refreshed.

More Oregon case files

Oregon data breaches

Filing source: Oregon Attorney General