DisclosureLens
HHS OCRState AGConfirmed5 filings · 1 stateLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedmoderate sensitivity
Merged incident · 5 filings

California Cancer Associates for Research and Excellence — December 2024 breach

Clustered 5 filings across 1 jurisdiction · filing window Jun 27, 2025 Jul 15, 2025. View entity profile → Other incidents for this victim →

1 cross-filing discrepancyMerge100%

Determination

Confirmed

Members

5 filings

States

1

Affected · reported

17,250

First → last filing

Jun 27, 2025 Jul 15, 2025

Merge confidence

100%

incident inc_00efd169d25d411c · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 5 regulatory filings. Intrusion Dec 13, 2024–Dec 16, 2024, discovered Jun 13, 2025 — the first regulatory filing landed 14 days later. 17,250 individuals reported across the linked filings. Data reported: PII, PHI, Identity (basic), and 2 more. Notifications rolled out on a 18-day schedule across 5 filings beginning Jun 27, 2025. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental
Notification delay
14days

Discovered → first regulatory filing

Discovery variance
0days

Range of discovered_at dates across filings

Filing span
18days

Time between earliest and latest filing

Not recorded for this incident

Leak precedence · Materiality delta · SEC filing delayno leak-site claim in this cluster; no SEC 8-K in this cluster.

Regulatory clocksHIPAA HHS notifiedFull clock table in Litigation Timeline

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California Cancer Associates for Research and Excellence data breach (2025) · DisclosureLens