HackingFinancial ServicesFinanceStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

ELLINGTON MANAGEMENT GROUP, L.L.C.

bd_3517ddbfe78c82c8 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 24, 2022

Filed

Aug 29, 2022

To disclose

27 weeks

Affected

4state residents only

Linked

5 filings

Confidence

66%

Full breach record for ELLINGTON MANAGEMENT GROUP, L.L.C. →2 incidents on file

Ellington Management Group notified Montana residents of a data breach involving unauthorized access to two user email mailboxes on February 24, 2022. The incident potentially exposed personal information including names, SSNs, driver's license numbers, credit card numbers, and bank account numbers related to mortgage loans. Ellington engaged forensic experts and offered 12 months of credit monitoring.

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Incident timeline

discovery → filing · 27 weeks / 186 days

Feb 24, 2022

Discovered

Aug 29, 2022

Filed

vs. sector median

+18 wks slower

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

New Hampshire State AGbd_c0239d7736dd98702022-08-29Verified
Indiana State AGbd_ccc66020504c4d712022-08-29Verified
Maine State AGbd_cd44060793b2c14d2022-08-29Verified
Massachusetts State AGbd_1fdbdd982bf09d3f2022-09-01 · +3dVerified

Name: ELLINGTON MANAGEMENT GROUP, L.L.C.
norm: ellington management

Name: ELLINGTON MANAGEMENT GROUP, L.L.C.
norm: ellington management
Industry: Financial Servicesllm

Discovered: Feb 24, 2022
Materiality determined: —
Notification sent: Aug 29, 2022
Affected individuals: 4state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Date of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Engaged outside experts to perform an investigation
Assessed the impact on the data
Assessed, identified, and remediated the unauthorized system access
Worked with a leading cybersecurity firm to assess controls
Offered complimentary access to Experian IdentityWorks for 12 months
Changes made: Confirmed controls align with industry standards
Closed any other potential unauthorized access points
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 27 weeks(186 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

New Hampshire State AGAug 29 · first

Indiana State AGAug 29 · first

Maine State AGAug 29 · first

Montana State AGAug 29 · first · this page

Massachusetts State AG+3d

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://dojmt.gov/wp-content/uploads/OCP/Consumer-Notification-Letter-523.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 29, 2022
Raw hash: c5492638a0f9f0a8eb7caa6852cc14b7035dd7f2c5536ac6cd05c10ba6493790

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityELLINGTON MANAGEMENT GROUP, L.L.C.

Victim entityELLINGTON MANAGEMENT GROUP, L.L.C.

Incidentdiscovered Feb 24, 2022

Stated responseEngaged outside experts to perform an investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov