HackingHealthcareHealthcareData ExfiltratedTargetedIdentity (basic)Government IDHealth (basic)MediumActive

Dignity Health Lassen Medical Clinic

bd_259071aa527182d9 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 20, 2024

Filed

Mar 25, 2025

To disclose

27 weeks

Affected · nationwide

2952 in this filing

Linked

3 filings

Confidence

66%

Full breach record for Dignity Health Lassen Medical Clinic →2 incidents on file

Dignity Health Lassen Medical Clinic reported an external system breach occurring between Sept 17-20, 2024. Unauthorized access led to exfiltration of PHI, names, SSNs, and driver's licenses affecting 295 individuals. Notices were sent in Jan 2025. Investigation is ongoing.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Sep 20, 2024 → Filed with AG Mar 25, 2025186d ⏱ ME AG >30d27 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 3 days

discovery → filing · 27 weeks / 186 days

Sep 17, 2024

Begins

Sep 20, 2024

Discovered

Mar 25, 2025

Filed

vs. sector median

+17 wks slower

This filing is one of 3 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

New Hampshire State AGbd_482a2bfb49fd28932025-03-25Verified
California State AGbd_b763680e2e4a373f2025-03-25Verified

Name: Dignity Health Lassen Medical Clinic
norm: dignity health lassen medical clinic

Name: Dignity Health Lassen Medical Clinic
norm: dignity health lassen medical clinic
Industry: Healthcarellm

Discovered: Sep 20, 2024
Breach occurred: Sep 17, 2024 – Sep 20, 2024
Undetected for: 3 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 13, 2025
Affected individuals: 295state + nationwide
Data types: Identity (basic)Government IDHealth (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notified relevant state and federal regulatorsNotified the U.S. Department of Health and Human Services
Initial access: exploit_public_facing

During the incident: Took IT network temporarily offline
Engaged external forensics vendor
Notified law enforcement
Provided 12 months of credit monitoring through Kroll
Changes made: Secured services of Kroll for identity monitoring
Provided guidance on fraud alerts and security freezes
Notified relevant state and federal regulators
Notified the U.S. Department of Health and Human Services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 27 weeks(186 days from discovery to filing)
Compliance flags: ME AG >30d · 186dME resident >60d · 115d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Sep 20, 2024
→ Filed with AG: Mar 25, 2025
186d 30 days (soft) ME AG >30d
Maine
Discovered: Sep 20, 2024
→ Notified: Jan 13, 2025
115d 60 days (analyst band; statutory cap is 30 days) ME resident >60d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Sep 20, 2024 → Filed with AG: Mar 25, 2025	186d	30 days (soft)	ME AG >30d
Maine	Discovered: Sep 20, 2024 → Notified: Jan 13, 2025	115d	60 days (analyst band; statutory cap is 30 days)	ME resident >60d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

New Hampshire State AGMar 25 · first

California State AGMar 25 · first

Maine State AGMar 25 · 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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/19ca0c13-1995-416d-8e29-046f700b55f8.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 25, 2025
Raw hash: 6581b99e54d3f7e55819deb36b33043e6294a572c7ac0c7411a8cf7408d36ea2

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityDignity Health Lassen Medical Clinic

Victim entityDignity Health Lassen Medical Clinic

Incidentdiscovered Sep 20, 2024

Stated responseTook IT network temporarily offline

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov