HackingFinancial ServicesFinanceStolen CredentialsDelayed DiscoveryIdentity (basic)Government IDMediumContained

Impac Mortgage Holdings, Inc.

bd_d1441c9d42c18c92 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 20, 2024

Filed

Apr 17, 2026

To disclose

25 months

Affected

18state residents only

Linked

4 filings

Confidence

66%

Full breach record for Impac Mortgage Holdings, Inc. →6 incidents on file

Impac Mortgage Holdings, Inc. notified the New Hampshire Attorney General of a data event affecting 18 NH residents. Unauthorized access occurred between Feb 21 and Mar 20, 2024. The incident involved exposure of names and Social Security numbers. Impac reported the incident to federal law enforcement, implemented additional safeguards, and offered 12 months of credit monitoring.

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Incident timeline

undetected · 28 days

discovery → filing · 25 months / 758 days

Feb 21, 2024

Begins

Mar 20, 2024

Discovered

Apr 17, 2026

Filed

vs. sector median

+100 wks slower

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Vermont State AGbd_12967a53eefe1d122026-04-17Verified
California State AGbd_450c61a65f466a372026-04-17Verified
Montana State AGbd_fb89e4e5ad806a502026-04-17Verified

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: Impac Mortgage Holdings, Inc.
norm: impac mortgage
Domain: impaccompanies.com
Industry: Financial Servicesllm

Discovered: Mar 20, 2024
Breach occurred: Feb 21, 2024 – Mar 20, 2024
Undetected for: 28 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 27, 2026
Affected individuals: 18state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified Office of the New Hampshire Attorney General
Initial access: valid_credentials

During the incident: Notified federal law enforcement
Provided access to credit monitoring services for twelve (12) months through TransUnion
Implemented additional safeguards and training to its employees
Changes made: Reviewed existing policies and procedures and added additional administrative safeguards
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 25 months(758 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Vermont State AGApr 17 · first

California State AGApr 17 · first

Montana State AGApr 17 · first

New Hampshire State AGApr 17 · first · this page

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/impac-mortgage-holdings-20260417.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 17, 2026
Raw hash: 259a847032c7f7964d8643d8e5e39d1dc29232e70cf7f4dee45ea64189a7156d

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityImpac Mortgage Holdings, Inc.

Incidentdiscovered Mar 20, 2024

Stated responseNotified federal law enforcement

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov