DisclosureLens
UnknownHealthcareHigh

Cancer Treatment Centers of America Midwestern Regional Medical Center

bd_aaaaece068561403 · schema v1 · pii pii-v1

Severity

High

Discovered

Jan 18, 2021

Filed

Mar 19, 2021

To disclose

9 weeks

Affected

104,000

Linked

3 filings

Confidence

95%
Full breach record for Cancer Treatment Centers of America Midwestern Regional Medical Center3 incidents on file

Cancer Treatment Centers of America at Midwestern Regional Medical Center reported a data breach to the Oregon Attorney General. The breach was reported on 2021-03-19. The breach occurred during 1/12/2021 - 1/18/2021. The breach was discovered on 1/18/2021. 104,000 individuals were affected. Notice was sent on 3/19/2021.

Oregon clock OR AG >45d9 weeks discovery → filing
AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 6 days
discovery → filing · 9 weeks / 60 days

Jan 12, 2021

Begins

Jan 18, 2021

Discovered

Mar 19, 2021

Filed

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

Filing propagation · 3 filings · 3 states

View merged incident ↗
California State AGMar 19 · first
HHS OCRMar 19 · first
Oregon State AGMar 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.