Almeida Law Group is investigating a data breach at OneMain Financial Group, LLC. The breach occurred on May 5th–8th, 2026 and was discovered on May 12th, 2026. If you were affected, contact Almeida Law Group.
About OneMain Financial Group, LLC
OneMain Financial Group, LLC (NYSE: OMF) is a consumer lender specializing in providing nonprime consumers with access to personal loans, auto loans, credit cards, and financial wellness products. The company operates approximately 1,300 branches across 44 states and has been offering loans for over 100 years. It is a subsidiary of OneMain Holdings, Inc., formerly known as Springleaf Holdings, Inc., and was previously known as CitiFinancial. The breaching entity is located at 1501 S. Clinton Street, 6th Floor, Baltimore, Maryland 21224. Because OneMain serves borrowers and handles loan applications, its records routinely include sensitive personal and financial identifiers.
What Happened?
OneMain Financial Group, LLC was listed in a Texas Attorney General data security breach report (record ID BR-0005366). The breach occurred over a four-day window between May 5th, 2026 and May 8th, 2026, and was discovered on May 12th, 2026. A total of 122,783 individuals were affected nationwide. The information involved included names, addresses, and Social Security numbers. Consumers were notified of the breach by U.S. Mail. The Texas Attorney General’s office published the report on September 25th, 2026—approximately four and a half months after the breach was discovered. No independent media coverage or class action filings specific to this May 2026 incident were found at the time of publication.
OneMain has a documented history of cybersecurity deficiencies. The New York Department of Financial Services documented at least three cybersecurity events at the company between 2018 and 2020, and in May 2023 announced a $4.25 million penalty against OneMain for violations of its Cybersecurity Regulation, citing failures to manage third-party service provider risk, control access privileges, and maintain a formal application security development methodology. A separate breach was also disclosed via attorney general filing on February 9th, 2018. While no class action lawsuit connected to this specific May 2026 breach has been identified, the company has faced a range of other legal actions in recent years, including a multi-state lawsuit filed by 13 state attorneys general in 2026 over alleged hidden loan add-on costs.
Key Facts at a Glance
- Company or Organization: OneMain Financial Group, LLC
- Industry: Financial Services — Consumer Lending / Nondepository Credit Intermediation
- Location: Baltimore, Maryland 21224
- Incident type: Unauthorized access to personal information
- Date of breach: May 5th, 2026 – May 8th, 2026
- Date breach discovered: May 12th, 2026
- Total persons affected: 122,783
- Prior breach: Yes — NYDFS $4.25 million cybersecurity penalty (May 2023); prior breach disclosed February 9th, 2018
- Litigation status: No class action specific to this breach found; unrelated litigation ongoing
- Source: Texas Attorney General Data Security Breach Report – BR-0005366; The Record – Lender OneMain fined $4.25 million for cybersecurity lapses; SC Media – OneMain pays $4.5M after ignored security flaws caused data breaches
What Should You Do?
If you received a notification letter from OneMain Financial Group, LLC, review it carefully for any identity protection enrollment offer and note any enrollment deadline. Because Social Security numbers were among the data types exposed, you should consider placing a fraud alert or credit freeze with each of the three major credit bureaus—Equifax, Experian, and TransUnion—to help prevent new accounts from being opened in your name. Review your credit reports for unfamiliar accounts or inquiries at AnnualCreditReport.com, which allows you to request free reports from all three bureaus. Monitor your existing financial accounts for unauthorized transactions, and report any suspected identity theft at IdentityTheft.gov, which can help you create a personalized recovery plan.
Your Legal Rights
If your personal information was involved in this breach, you may have legal rights depending on the facts of the incident and the law in your state. Almeida Law Group represents consumers in data breach and privacy litigation and can help you evaluate whether you may have a claim. Contact us at (708) 529-5418 or through our contact page for a free case evaluation.
