CALIFORNIAMalwareHealthcareHealthcareRansomwareData EncryptedRansom DemandedBusiness Associate (HIPAA)Customer Data InvolvedSupply Chain (3P Vendor)PHIHealth (basic)Identity (basic)Government IDMediumContained

Community Health Systems, Inc.

bd_3e253dad566cfa3e · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Feb 28, 2023

To disclose

—

Affected

824

Confidence

98%

Full breach record for Community Health Systems, Inc. →2 incidents on file

Community Health Group (Health Plan, CA) reported to HHS on 2023-02-28 a Hacking/IT Incident affecting 824 individuals. A business associate experienced a ransomware attack impacting PHI including names, dates of birth, driver's license and Social Security numbers, state/tribal ID numbers, and medical/health insurance information. Breached information located on Network Server. OCR provided technical assistance during the investigation.

J jump to incidentP pin to compareR raw source

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

Feb 28, 2023

Filed

—

No filing yet · watching

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

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed824 affectedView incident

Name: Community Health Systems, Inc.
norm: community health
Domain: chs.net
Industry: Insurance — Health

Name: Community Health Systems, Inc.
norm: community health
Domain: chs.net
Industry: Insurance — Health
Industry: Healthcaresource default

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 824nationwide
Data types: PHIHealth (basic)Identity (basic)Government ID
HHS breach type: Hacking / IT incident
Where the data lived: Network server
Covered-entity type: Health planBusiness associate involved
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: CE notified HHSOCR provided technical assistance during the investigation

During the incident: BA notified affected individuals and the media
BA provided free credit monitoring
Changes made: BA adopted additional technical security measures
BA revised policies and procedures
BA implemented additional security training
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.

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: Feb 28, 2023
Raw hash: 8a2c7d045753ebd4925383ceefc51e4032be2ea1e816d20a48521409cb61b83f

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Reporting entityCommunity Health Systems, Inc.

Victim entityCommunity Health Systems, Inc.

IncidentRansomware

Stated responseBA notified affected individuals and the media

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing