HackingFinancial ServicesFinanceStolen CredentialsCustomer Data InvolvedPIIIdentity (basic)LowContained

CUSO Financial Services, L.P.

bd_c148a7a23112a55a · schema v1 · pii pii-v1

Severity

Low

Discovered

Jan 19, 2024

Filed

Oct 28, 2024

To disclose

40 weeks

Affected

27state residents only

Linked

9 filings

Confidence

65%

Full breach record for CUSO Financial Services, L.P. →5 incidents on file

CUSO Financial Services, LP notified the NH AG of unauthorized access to an employee account via a third-party FINRA archiving provider between Dec 19, 2023 and Jan 19, 2024. Discovered Jan 19, 2024. ~27 NH residents affected. PII involved. Response included securing account, resetting passwords, engaging specialists, notifying law enforcement, and offering credit monitoring.

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Incident timeline

undetected · 31 days

discovery → filing · 40 weeks / 283 days

Dec 19, 2023

Begins

Jan 19, 2024

Discovered

Sep 10, 2024

Scope determined

Oct 28, 2024

Filed

vs. sector median

+32 wks slower

This filing is one of 9 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (8) · sorted by filing gap

California State AGbd_55bb67f5c342d2332024-10-28Verified
Oregon State AGbd_5f808b59a614fead2024-10-28Candidate
Massachusetts State AGbd_6c11ed7ee486cb072024-10-28Verified
Maine State AGbd_af8d29e7a825abc22024-10-28Verified

Show 4 more filings ↓up to 4d gap

Montana State AGbd_b7bc262cfb0f930a2024-10-28Verified by operator
Washington State AGbd_c6c0f3798969948d2024-10-28Verified by operator
Indiana State AGbd_f79f964303bed0832024-10-28Verified
Massachusetts State AGbd_adef04a433aee23f2024-11-01 · +4dVerified

Name: CUSO Financial Services, L.P.
norm: cuso financial

Name: CUSO Financial Services, L.P.
norm: cuso financial
Industry: Financial Servicesllm

Discovered: Jan 19, 2024
Breach occurred: Dec 19, 2023 – Jan 19, 2024
Undetected for: 31 daysoccurrence → discovery
Materiality determined: Sep 10, 2024
Notification sent: Oct 28, 2024
Affected individuals: 27state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified federal law enforcement regarding the eventProviding written notice of this event to relevant state regulators, as necessary
Initial access: valid_credentials

During the incident: Secured the affected account
Reset passwords
Engaged cybersecurity specialists to conduct a thorough investigation
Notified federal law enforcement
Providing access to credit monitoring services for , through Experian, to individuals whose personal information was potentially affected by this event, at no cost to these individuals
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Providing written notice of this event to relevant state regulators, as necessary, and to the three major credit reporting agencies, Equifax, Experian, and TransUnion
Changes made: Implementing additional safeguards and training to its employees
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 40 weeks(283 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 8 states

View merged incident ↗

California State AGOct 28 · first

Oregon State AGOct 28 · first

Massachusetts State AGOct 28 · first

Maine State AGOct 28 · first

Montana State AGOct 28 · first

Washington State AGOct 28 · first

Indiana State AGOct 28 · first

New Hampshire State AGOct 28 · first · this page

Massachusetts State AG+4d

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://mm.nh.gov/files/uploads/doj/remote-docs/cuso-financial-services-20241028.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 28, 2024
Raw hash: 54dbdaf27998cfc6899093ff7f40def9ec2b9bff2c2d562c6f39af240f0ed04f

Linked disclosures

Regulatory filings (8) · sorted by filing gap

Reporting entityCUSO Financial Services, L.P.

Victim entityCUSO Financial Services, L.P.

Incidentdiscovered Jan 19, 2024

Stated responseSecured the affected account

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov