HackingPIIIdentity (basic)MediumContained

illumifin

bd_4834a8e85a0c3a7b · schema v1 · pii pii-v2

Severity

Medium

Discovered

Nov 4, 2025

Filed

Mar 31, 2026

To disclose

21 weeks

Affected

1,071state residents only

Linked

12 filings

Confidence

67%

Full breach record for illumifin →2 incidents on file

illumifin Corporation, an insurance technology company, notified Montana residents of a cybersecurity incident discovered on November 4, 2025. An unauthorized person gained access to the network and copied files containing client information. The company engaged a third-party forensic firm, contained the activity, and notified law enforcement. The specific data elements were redacted in the notification letter.

J jump to incidentP pin to compareR raw source

Incident timeline

discovery → filing · 21 weeks / 147 days

Nov 4, 2025

Discovered

Mar 31, 2026

Filed

This filing is one of 12 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Massachusetts State AGbd_13235aa3216392ba2026-03-31Verified
California State AGbd_4f85d73db2552a712026-03-31Verified
Indiana State AGbd_61ed61057416aef12026-03-31Verified
New Hampshire State AGbd_6bd728330d6299662026-03-31Verified

Show 6 more filings ↓up to 22d gap

Texas State AGbd_89959561b8e6cb302026-04-02 · +2dVerified
South Carolina State AGbd_e3b9b22227324eae2026-04-07 · +7dVerified
Nebraska State AGbd_4fe7e34d290fb03a2026-03-13 · +18dVerified
HHS OCRbd_302d552bb1288e6f2026-03-10 · +21dVerified
New Hampshire State AGbd_45251292f85141d12026-04-22 · +22dVerified
Oregon State AGbd_c525393ebdb287142026-04-22 · +22dVerified

Showing first 10 of 11 linked disclosures.

Name: illumifin
Domain: illumifin.com

Name: illumifin
Domain: illumifin.com

Discovered: Nov 4, 2025
Materiality determined: —
Notification sent: —
Affected individuals: 1,071state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Initial access: exploit_public_facing

During the incident: Implemented our incident response protocols
Taking steps to contain the activity
Launching an investigation with assistance from a third-party forensic firm
Notified law enforcement
Changes made: Implemented, and will continue to adopt, additional safeguards to further protect and monitor our systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 21 weeks(147 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 10 states

View merged incident ↗

HHS OCRMar 10 · first

Nebraska State AG+3d

Massachusetts State AG+21d

California State AG+21d

Indiana State AG+21d

New Hampshire State AG+21d

Montana State AG+21d · this page

Texas State AG+23d

South Carolina State AG+28d

New Hampshire State AG+43d

Oregon State AG+43d

Pattern: first filing Mar 10 (MN), last Apr 22 (OR) — a 43-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 11 — the full spread may be wider.

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/2026/09/Consumer-notification-letter-1.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 31, 2026
Raw hash: 8a3e9e6d93247f115b8ffc20c459d8fa73ec560f62faa856cd991b084b06a1e6

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityillumifin

Victim entityillumifin

Incidentdiscovered Nov 4, 2025

Stated responseImplemented our incident response protocols

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov