ILLINOISAccidentalHealthcareHealthcareMisdeliveryBusiness Associate (HIPAA)Customer Data InvolvedPHIHealth (basic)Identity (basic)Financial accountLowResolved

Cook County Health

bd_9ceda7a6b953bd17 · schema v1 · pii pii-v1

Severity

Low

Discovered

Oct 27, 2017

Filed

Oct 27, 2017

To disclose

—

Affected

727

Confidence

69%

Full breach record for Cook County Health →10 incidents on file

Cook County Health & Hospitals System reported to HHS on 2017-10-27 a Unauthorized Access/Disclosure affecting 727 individuals. Breached information located on Network Server. Business associate Experian Health discovered an error in billing platform upgrade resulting in PHI delivery to wrong recipients.

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HIPAA clock✓ HHS report on time

⚠ filing dateThe stored discovery date equals the regulator filing date, so no genuine detection date was captured.

Incident timeline

discovery → filing · ≤1 day / 0 days

Oct 27, 2017

Discovered

Oct 27, 2017

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed727 affectedView incident

Name: Cook County Health
norm: cook county health
Industry: Health Care Services

Name: Cook County Health
norm: cook county health
Industry: Healthcaresource default

Discovered: Oct 27, 2017
Materiality determined: —
Notification sent: —
Affected individuals: 727nationwide
Data types: PHIHealth (basic)Identity (basic)Financial account
HHS breach type: Unauthorized access or disclosure
Where the data lived: Network server
Covered-entity type: Healthcare providerBusiness associate involved
Attack vector: Misconfiguration
MITRE ATT&CK: T1530 Data from Cloud Storage Object
Threat actor: Internal
Regulator citations: Notified HHS
Third party: via Experian Healthbusiness associate

During the incident: Notified HHS
Notified affected individuals
Notified the media
Provided substitute notice
Changes made: Experian reverted back to its older billing platform
Source: Quoted from the filing itself, not independently verified.

Compliance flags: HHS report on timeHHS notified
Discovery-date grounding: filing dateThe stored discovery date equals the regulator filing date, so no genuine detection date was captured.
Clock breakdown: Statute Window Elapsed Threshold Status
HIPAA
Discovered: Oct 27, 2017
→ Notified: not extracted
— 60 days HHS report on time
HIPAA
Discovered: Oct 27, 2017
→ Notified: not extracted
— regulatory submission HHS notified

Statute	Window	Elapsed	Threshold	Status
HIPAA	Discovered: Oct 27, 2017 → Notified: not extracted	—	60 days	HHS report on time
HIPAA	Discovered: Oct 27, 2017 → 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 27, 2017
Raw hash: 3b887b114ba7885722da149bcf2572db5be780b49edd3b402fdba7f5dedf8e35

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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Reporting entityCook County Health

Victim entityCook County Health

Incidentdiscovered Oct 27, 2017

Stated responseNotified HHS

ComplianceHHS report on time

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing