DisclosureLens
HackingHealthcareHealthcareStolen CredentialsData ExfiltratedTargetedIdentity (basic)Government IDHealth (basic)PHIHighActive

21st Century Oncology

bd_ed346a8482bd7a84 · schema v1 · pii pii-v1

Severity

High

Discovered

Nov 13, 2015

Filed

Mar 4, 2016

To disclose

16 weeks

Affected

1,202state residents only

Linked

8 filings

Confidence

66%
Full breach record for 21st Century Oncology

21st Century Oncology notified the NH Attorney General of a breach where an unauthorized third party accessed a database containing patient names, SSNs, and PHI. The incident occurred around Oct 3, 2015, and was discovered on Nov 13, 2015, via FBI notification. 1,202 NH residents were notified. The company engaged forensic investigators and enhanced security protocols.

Incident timeline

undetected · 41 days
discovery → filing · 16 weeks / 112 days

Oct 3, 2015

Begins

Nov 13, 2015

Discovered

Mar 4, 2016

Filed

vs. sector median

+5 wks slower

This filing is one of 8 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (7) · sorted by filing gap

Show 3 more filingsup to 664d gap

Filing propagation · 8 filings · 7 states

View merged incident ↗
Washington State AGMar 4 · first
California State AGMar 4 · first
HHS OCRMar 4 · first
New Hampshire State AGMar 4 · first · this page

Pattern: first filing Mar 4 (WA), last Dec 28 — a 664-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.