DisclosureLens
MICHIGANMalwareHealthcareHealthcarePHIHealth (basic)Identity (basic)Government IDFinancial accountHighContained

Cancer and Hematology Centers of Western Michigan

bd_b543a9900f8d0773 · schema v1 · pii pii-v1

Severity

High

Discovered

—

Filed

Mar 18, 2022

To disclose

—

Affected

43,071

Confidence

69%
Full breach record for Cancer and Hematology Centers of Western Michigan →

Cancer and Hematology Centers of Western Michigan reported to HHS on 2022-03-18 a Hacking/IT Incident affecting 43,071 individuals. Breached information located on Network Server. The incident involved a ransomware attack encrypting PHI (names, addresses, DOB, SSN, financial info, diagnoses). The CE provided credit monitoring, implemented MFA, and additional technical safeguards.

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 18, 2022

Filed

No interval is drawn: no breach start or discovery date is on record for this filing.

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed43,071 affectedView incident

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.