HackingPIIPHIIdentity (basic)Government IDHealth (basic)MediumContained

The Carpenter Health Network

bd_addc4ea667e24e36 · schema v1 · pii pii-v2

Severity

Medium

Discovered

Mar 5, 2025

Filed

May 21, 2025

To disclose

—

Affected

Not disclosed

Confidence

65%

Full breach record for The Carpenter Health Network →2 incidents on file

The Carpenter Health Network notified Nebraska residents that between Feb 4-28, 2025, an unauthorized third party accessed patient IT systems. Discovered March 5, 2025, the breach exposed names, DOBs, SSNs, medical info, and health insurance data. The Network engaged external cybersecurity experts, coordinated with law enforcement, and offers two years of complimentary identity protection and credit monitoring via Experian.

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Incident timeline

undetected · 29 days

Feb 4, 2025

Begins

Mar 5, 2025

Discovered

May 21, 2025

Filed

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

Name: The Carpenter Health Network
norm: the carpenter health network

Name: The Carpenter Health Network
norm: the carpenter health network

Discovered: Mar 5, 2025
Breach occurred: Feb 4, 2025 – Feb 28, 2025
Undetected for: 29 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 21, 2025
Affected individuals: Not disclosed
Data types: PIIPHIIdentity (basic)Government IDHealth (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1119 Automated Collection
Threat actor: External
Regulator citations: coordinated with law enforcement

During the incident: Launched an investigation with the assistance of leading external cybersecurity experts
Coordinated with law enforcement
Deployed additional monitoring tools
Taken other steps designed to enhance the security of our systems
Changes made: Arranged to offer you identity protection and credit monitoring services for two years at no cost to you
Source: Quoted from the filing itself, not independently verified.

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://nebraska.gov/ago/data-breach/documents/7bc3332b-43a6-499e-9aea-d61f86b783e7.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 21, 2025
Raw hash: 46d454b230d7e2548cbfd902963902f0d3c0968b80e1607a9c4ebaf4d66f383b

Reporting entityThe Carpenter Health Network

Victim entityThe Carpenter Health Network

Incidentdiscovered Mar 5, 2025

Stated responseLaunched an investigation with the assistance of leading external cybersecurity experts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov