MICHIGANMalwareHealthcareFinancial ServicesHealthcareRansomwareCustomer Data InvolvedData EncryptedRansom DemandedHealth (basic)Identity (basic)LowContained

Detroit Chassis, LLC

bd_57b83d3cf64d31ef · schema v1 · pii pii-v1

Severity

Low

Discovered

—

Filed

Nov 21, 2023

To disclose

—

Affected

958

Linked

2 filings

Confidence

96%

Full breach record for Detroit Chassis, LLC →

Detroit Chassis, LLC (a Health Plan in MI) reported to HHS on 2023-11-21 a ransomware attack affecting 958 individuals. PHI on a network server was compromised, including names, dates of service, provider information, and prescription benefits. The CE notified HHS, affected individuals, the media, and provided substitute notice. In response, the CE strengthened its administrative, technical, and security safeguards.

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HIPAA clock✓ HHS notified

⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

⚠ No discovery dateThe OCR public portal omits the discovery date, so the 60-day notification clock cannot be evaluated from this source — only that the filing was submitted.

Incident timeline — partial

? — ?

Breach window unknown

Nov 21, 2023

Filed

—

Corroborated · see linked filings

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Massachusetts State AGbd_d4853b6b1b59c18b2023-11-09 · +12dVerified

Name: Detroit Chassis, LLC
norm: detroit chassis
Industry: Insurance — Health

Name: Detroit Chassis, LLC
norm: detroit chassis
Industry: Insurance — Health
Industry: Healthcaresource defaultFinancial Servicesllm

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 958nationwide
Data types: Health (basic)Identity (basic)
HHS breach type: Hacking / IT incident
Where the data lived: Network server
Covered-entity type: Health plan
Attack vector: Unauthorized Access
MITRE ATT&CK: T1486 Data Encrypted for Impact
Threat actor: ExternalFinancial
Regulator citations: HHS OCR notified

During the incident: Notified affected individuals
Notified media
Provided substitute notice
Strengthened administrative, technical, and security safeguards
Changes made: Strengthened administrative safeguards
Strengthened technical safeguards
Strengthened security safeguards
Source: Quoted from the filing itself, not independently verified.

Compliance flags: HHS notified
Discovery-date grounding: no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.
Clock breakdown: Statute Window Elapsed Threshold Status
HIPAA
Discovered: not extracted
→ Notified: not extracted
— regulatory submission HHS notified

Statute	Window	Elapsed	Threshold	Status
HIPAA	Discovered: not extracted → Notified: not extracted	—	regulatory submission	HHS notified

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Massachusetts State AGNov 9 · first

HHS OCR+12d · this page

Pattern: first filing Nov 9 (MA), last Nov 21 (MI) — a 12-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://ocrportal.hhs.gov/ocr/breach/breach_report.jsf
DisclosureLens renders the full SEC/HHS filing inline below from the originating regulator’s public record (§4.5 fair report privilege).
Filed at: Nov 21, 2023
Raw hash: 3a5a606e60c4b53a71e1c58aa212fd1940345399add5ba7d191fcc415b8cef5a

AI-assisted summary above. The structured extract on this page was generated from the document below. Inspect the source to verify or correct any field.

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Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityDetroit Chassis, LLC

Victim entityDetroit Chassis, LLC

IncidentUnauthorized Access

Stated responseNotified affected individuals

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing