DisclosureLens
Social EngineeringHealthcareHealthcarePhishingStolen CredentialsTargetedIdentity (basic)PHIHealth (basic)LowContained

Cancer Treatment Centers of America

bd_179aca4fbda3f69a · schema v1 · pii pii-v1

Severity

Low

Discovered

Jan 18, 2021

Filed

Mar 19, 2021

To disclose

9 weeks

Affected

364state residents only

Linked

3 filings

Confidence

65%
Full breach record for Cancer Treatment Centers of America →7 incidents on file

Cancer Treatment Centers of America notified Montana AG of a security incident involving unauthorized access to an employee email account between Jan 12-18, 2021. Suspicious activity was detected on Jan 18. Affected data included names, medical record numbers, health insurance info, and limited medical information. No SSN or financial data involved.

Incident timeline

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

Jan 12, 2021

Begins

Jan 18, 2021

Discovered

Mar 19, 2021

Filed

vs. sector median

3 wks faster

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 ↗
Illinois State AGJan 1 · first
Washington State AG+77d
Montana State AG+77d · this page

Pattern: first filing Jan 1 (IL), last Mar 19 (MT) — a 77-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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.