UnknownGovernment IDFinancial accountMedium

OSF HEALTHCARE SYSTEM

bd_b288deb4577e5ece · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Oct 1, 2021

To disclose

—

Affected

5state residents only

Linked

9 filings

Confidence

95%

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

OSF HealthCare System reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2021-10-01. 5 Massachusetts residents were affected. The report records the breach type as electronic.

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Leak gap clock⏱ Leak >90d

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

Incident timeline — partial

? — ?

Breach window unknown

Oct 1, 2021

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

A leak claim by xinglocker about this victim predates this filing by 136 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitexinglockerbd_f8ace411af1e1abf2021-05-18 · +136dVerified by operator

Regulatory filings (7) · sorted by filing gap

Montana State AGbd_642aeb97e779372a2021-10-01Verified by operator
HHS OCRbd_bf20565c237987762021-10-01Verified by operator
Illinois State AGbd_14299358f0ba63fe2021-01-01 · +273dVerified by operator
Illinois State AGbd_c91f7fe398e530012021-01-01 · +273dVerified by operator

Show 3 more filings ↓up to 1762d gap

Montana State AGbd_08d288f3d1ac951e2020-10-19 · +347dCandidate
HHS OCRbd_83807d832a08bc802020-10-19 · +347dVerified
HHS OCR enforcementbd_7fbc6210e9c1f4d52026-07-29 · +1762dVerified by operator

Name: OSF HEALTHCARE SYSTEM
norm: osf healthcare system

Name: OSF HEALTHCARE SYSTEM
norm: osf healthcare system

Discovered: —
Materiality determined: —
Notification sent: —
Affected individuals: 5state-resident count only
Data types: Government IDFinancial account
Data elements: Social Security numberFinancial account number
Stated not affected: Driver's licence numberPayment card number
The filing states these were not involved. Categories absent from both lists were not addressed either way.
Attack vector: Unknown

Compliance flags: Leak >90dMA credit monitoring due
Discovery-date grounding: no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

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

Illinois State AG+74d

Montana State AG+347d

HHS OCR+347d

Massachusetts State AG+347d · this page

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://www.mass.gov/doc/data-breach-report-2021/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 1, 2021
Raw hash: 6145f93e5ed6f0892a7c29f8a86627cdfa26a9e65bc23b5eca8f241d025c2b03

Linked disclosures

Ransomware claims (1)

Regulatory filings (7) · sorted by filing gap

Reporting entityOSF HEALTHCARE SYSTEM

Victim entityOSF HEALTHCARE SYSTEM

IncidentUnknown

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov