Social EngineeringFinancial ServicesFinancePhishingTargetedIdentity (basic)Government IDFinancial accountMediumActive

IH Mississippi Valley Credit Union

bd_ca6fff653312af14 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Oct 2, 2017

Filed

Dec 1, 2017

To disclose

9 weeks

Affected

1state residents only

Confidence

66%

Full breach record for IH Mississippi Valley Credit Union →2 incidents on file

IH Mississippi Valley Credit Union notified NH AG of a phishing incident affecting 1 NH resident. Employee email compromised Aug 30, 2017; discovered Oct 2, 2017. Data exposed: names, SSNs, account numbers. Forensic investigation ongoing. Credit monitoring provided.

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Incident timeline

undetected · 33 days

discovery → filing · 9 weeks / 60 days

Aug 30, 2017

Begins

Oct 2, 2017

Discovered

Dec 1, 2017

Filed

vs. sector median

on median

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 affectedView incident

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: IH Mississippi Valley Credit Union
norm: ih mississippi valley credit union
Industry: Financial Servicesllm

Discovered: Oct 2, 2017
Breach occurred: Aug 30, 2017
Undetected for: 33 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 1, 2017
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney Generalproviding written notice of this incident to federal law enforcement and other state regulators
Initial access: phishing_link

During the incident: Began working with an independent third-party to conduct a complete forensic investigation
Reported the incident to federal law enforcement
Established a dedicated hotline for potentially affected individuals
Providing affected individuals access to 1 free year of credit monitoring and identity restoration services through TransUnion
Changes made: Implemented additional safeguards to protect our members' personal information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(60 days from discovery to filing)
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://mm.nh.gov/files/uploads/doj/remote-docs/ih-mississippi-20171201.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 1, 2017
Raw hash: 11b30ba9d2f9d07d6ba6c0dea33b3e773ed1dc70ac4ca0d9285f2b6ff55c945f

Reporting entityMullen Coughlin LLC

Victim entityIH Mississippi Valley Credit Union

Incidentdiscovered Oct 2, 2017

Stated responseBegan working with an independent third-party to conduct a complete forensic investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov