ILLINOISHackingHealthcareHealthcareBusiness Associate (HIPAA)Customer Data InvolvedData ExfiltratedPHIHealth (basic)Identity (basic)Government IDMediumContained

HOSPITAL SISTERS HEALTH SYSTEM

bd_09628e4e24b69742 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Oct 26, 2023

To disclose

—

Affected

500

Confidence

68%

Full breach record for HOSPITAL SISTERS HEALTH SYSTEM →14 incidents on file

Hospital Sisters Health System reported to HHS on 2023-10-26 a Hacking/IT Incident affecting 500 individuals. Breached information located on Network Server. PHI included names, DOB, SSNs, claims, and treatment info. BA implemented additional safeguards; OCR provided assistance.

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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

Oct 26, 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.Confirmed500 affectedView incident

Name: HOSPITAL SISTERS HEALTH SYSTEM
norm: hospital sisters health system
Industry: Health Care Services

Name: HOSPITAL SISTERS HEALTH SYSTEM
norm: hospital sisters health system
Industry: Healthcaresource default

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 500nationwide
Data types: PHIHealth (basic)Identity (basic)Government ID
HHS breach type: Hacking / IT incident
Where the data lived: Network server
Covered-entity type: Business associate
Attack vector: Unauthorized Access
MITRE ATT&CK: T1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: OCR provided technical assistance
Third party: via Hospital Sisters Health Systembusiness associate

During the incident: Implementing additional administrative and technical safeguards
Changes made: Implementing additional administrative and technical 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.

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 26, 2023
Raw hash: 37fdd0c610439cfa3c35f985696e3638741f336699d1dc4028c5fe8909e7a104

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Reporting entityHOSPITAL SISTERS HEALTH SYSTEM

Victim entityHOSPITAL SISTERS HEALTH SYSTEM

IncidentUnauthorized Access

Stated responseImplementing additional administrative and technical safeguards

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing