OSF HEALTHCARE SYSTEM
bd_b288deb4577e5ece · schema v1 · pii pii-v1
Full breach record for OSF HEALTHCARE SYSTEM →10 incidents on fileOSF 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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Incident timeline — partial
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Breach window unknown
Oct 1, 2021
Filed
No interval is drawn: no breach start or discovery date is on record for this filing.
Linked disclosures
Why this link?Ransomware claims (1)
- Leak Sitexinglockerbd_f8ace411af1e1abf2021-05-18 · +136dVerified by operator
Regulatory filings (4) · 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
Enforcement records (1)
- HHS OCR enforcementbd_7fbc6210e9c1f4d52026-07-29 · +1762dVerified by operator
Filing propagation · 5 filings · 3 states
View merged incident ↗Pattern: first filing Jan 1 (IL), last Oct 1 (MA) — a 273-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.