ILLINOISHackingHealthcareHealthcarePhishingCustomer Data InvolvedPHIHealth (basic)Identity (basic)Financial accountHighContained

Cancer Treatment Centers of America Midwestern Regional Medical Center

bd_b53d06d2c24e2011 · schema v1 · pii pii-v1

Severity

High

Discovered

—

Filed

Mar 19, 2021

To disclose

—

Affected

104,808

Linked

3 filings

Confidence

69%

Full breach record for Cancer Treatment Centers of America Midwestern Regional Medical Center →3 incidents on file

Cancer Treatment Centers of America at Midwestern Regional Medical Center reported to HHS on 2021-03-19 a Hacking/IT Incident affecting 104,808 individuals. Breached information located on Email. An employee was the subject of an email phishing scheme that compromised PHI including names, medical record numbers, health insurance information, and treatment information. The CE implemented additional safeguards and retrained staff.

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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

Mar 19, 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 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

California State AGbd_444e33d05ef413eb2021-03-19Verified
Oregon State AGbd_aaaaece0685614032021-03-19Verified

Name: Cancer Treatment Centers of America Midwestern Regional Medical Center
norm: cancer treatment centers of america midwestern regional medical center
Industry: Health Care Services

Name: Cancer Treatment Centers of America Midwestern Regional Medical Center
norm: cancer treatment centers of america midwestern regional medical center
Industry: Health Care Services
Industry: Healthcaresource default

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 104,808nationwide
Data types: PHIHealth (basic)Identity (basic)Financial account
HHS breach type: Hacking / IT incident
Where the data lived: Email
Covered-entity type: Healthcare provider
Attack vector: Unauthorized Access
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: External
Regulator citations: Notified HHS
Initial access: phishing_link

During the incident: Notified HHS
Notified affected individuals
Notified the media
Posted substitute notice on its website
Implemented additional administrative, technical, and security safeguards
Retrained all staff
Changes made: Implemented additional administrative, technical, and security safeguards
Retrained all staff
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 · 3 filings · 3 states

View merged incident ↗

California State AGMar 19 · first

Oregon State AGMar 19 · first

HHS OCRMar 19 · first · this page

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: Mar 19, 2021
Raw hash: 392573272b40a42907f2ff136427425c29cb9e833e782eb442d8a3b9084251a2

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Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityCancer Treatment Centers of America Midwestern Regional Medical Center

Victim entityCancer Treatment Centers of America Midwestern Regional Medical Center

IncidentUnauthorized Access

Stated responseNotified HHS

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing