HackingFinancial ServicesFinanceCustomer Data InvolvedIdentity (basic)Financial accountLowContained

ONEMAIN FINANCIAL GROUP, LLC

bd_dfa4280afb3f3bdb · schema v1 · pii pii-v2

Severity

Low

Discovered

—

Filed

Sep 1, 2026

To disclose

—

Affected

39state residents only

Confidence

68%

Full breach record for ONEMAIN FINANCIAL GROUP, LLC →7 incidents on file

OneMain Financial Group, LLC notified Massachusetts residents of unauthorized activity on its systems resulting in the access or acquisition of personal information, including names, addresses, and account-related data. The company contained the incident, engaged forensic investigators, and is offering 24 months of credit monitoring via TransUnion. No evidence of unauthorized access to customer accounts was found.

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Incident timeline — partial

? — ?

Breach window unknown

Sep 1, 2026

Filed

No interval is drawn: no breach start or discovery date is on record for this filing.

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed39 affectedView incident

Name: ONEMAIN FINANCIAL GROUP, LLC
norm: onemain financial

Name: ONEMAIN FINANCIAL GROUP, LLC
norm: onemain financial
Industry: Financial Servicesllm

Discovered: —
Materiality determined: —
Notification sent: Sep 28, 2026
Affected individuals: 39state-resident count only
Data types: Identity (basic)Financial account
Attack vector: Unknown
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External

During the incident: Acted quickly to stop the activity
Took steps to enhance our security measures
Began working with a leading cybersecurity and forensic firm to investigate what happened
Offering complimentary access to Credit Monitoring and Identity Protection Services through our third-party vendor, TransUnion
Implemented enhanced security and monitoring controls
Changes made: Implemented enhanced security and monitoring controls
Remain committed to ongoing information security reviews to strengthen our security and privacy programs and controls
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://www.mass.gov/doc/2026-1642-onemain-financial-group-llc/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 1, 2026
Raw hash: d82e9cf87829419172112dbbe073c975637bfd178e20d7d1261c0444e067e680

Reporting entityONEMAIN FINANCIAL GROUP, LLC

Victim entityONEMAIN FINANCIAL GROUP, LLC

IncidentUnknown

Stated responseActed quickly to stop the activity

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov