ILLINOISMalwareHealthcareHealthcareRansomwareBusiness Associate (HIPAA)Customer Data InvolvedData ExfiltratedData EncryptedRansom DemandedPHIHealth (basic)Identity (basic)MediumContained

OSF HEALTHCARE SYSTEM

bd_83807d832a08bc80 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Oct 19, 2020

To disclose

—

Affected

94,171

Linked

9 filings

Confidence

68%

Full breach record for OSF HEALTHCARE SYSTEM →10 incidents on file

OSF HealthCare System reported to HHS on 2020-10-19 a Hacking/IT Incident affecting 94,171 individuals. Breached information located on Network Server. A business associate experienced a ransomware attack affecting ePHI including names, addresses, phone numbers, email addresses, dates of birth, and treatment information.

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

Oct 19, 2020

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 9 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitexinglockerbd_f8ace411af1e1abf2021-05-18 · +211dVerified by operator

Regulatory filings (7) · sorted by filing gap

Montana State AGbd_08d288f3d1ac951e2020-10-19Candidate
Illinois State AGbd_14299358f0ba63fe2021-01-01 · +74dVerified by operator
Illinois State AGbd_c91f7fe398e530012021-01-01 · +74dVerified by operator
Montana State AGbd_642aeb97e779372a2021-10-01 · +347dVerified by operator

Show 3 more filings ↓up to 2109d gap

Massachusetts State AGbd_b288deb4577e5ece2021-10-01 · +347dVerified
HHS OCRbd_bf20565c237987762021-10-01 · +347dVerified by operator
HHS OCR enforcementbd_7fbc6210e9c1f4d52026-07-29 · +2109dVerified by operator

Name: OSF HEALTHCARE SYSTEM
norm: osf healthcare system
Industry: Health Care Services

Name: OSF HEALTHCARE SYSTEM
norm: osf healthcare system
Industry: Health Care Services
Industry: Healthcaresource default

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 94,171nationwide
Data types: PHIHealth (basic)Identity (basic)
HHS breach type: Hacking / IT incident
Where the data lived: Network server
Covered-entity type: Healthcare providerBusiness associate involved
Attack vector: Unauthorized Access
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified HHS

During the incident: Notified HHS
Notified affected individuals
Notified the media
Provided a telephone number for questions or concerns
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 · 8 filings · 3 states

View merged incident ↗

Montana State AGOct 19 · first

HHS OCROct 19 · first · this page

Illinois State AG+74d

Montana State AG+347d

Massachusetts State AG+347d

HHS OCR+347d

HHS OCR enforcement+2109d

Pattern: first filing Oct 19 (MT), last Jul 29 — a 2109-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: Oct 19, 2020
Raw hash: 6f4993399445ac788212e5eced6901e73e68f98cbb4f1db42c43a8d51f51bd7b

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

Ransomware claims (1)

Regulatory filings (7) · sorted by filing gap

Reporting entityOSF HEALTHCARE SYSTEM

Victim entityOSF HEALTHCARE SYSTEM

IncidentUnauthorized Access

Stated responseNotified HHS

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing