Beverly Hills Oncology Medical Group — February 2025 breach

Clustered 6 filings across 5 jurisdictions · filing window Oct 31, 2025 → Nov 6, 2025. View entity profile → Other incidents for this victim →

⚠ 2 cross-filing discrepancies →Merge100%

Determination

Confirmed

Members

6 filings

States

Affected · reported

57,655

First → last filing

Oct 31, 2025 → Nov 6, 2025

Merge confidence

100%

incident inc_ee42cb1a14174fed · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 6 regulatory filings. The filings describe unauthorized access. Intrusion Feb 7, 2025–Feb 11, 2025, discovered Feb 7, 2025 — the first regulatory filing landed 266 days later. 57,655 individuals reported across the linked filings. Data reported: Government ID, Identity (basic), Financial account, and 3 more. Notifications rolled out on a 6-day schedule across 6 filings beginning Oct 31, 2025. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Notification delay

266days

Discovered → first regulatory filing

Discovery variance

248days

Range of discovered_at dates across filings

Filing span

6days

Time between earliest and latest filing

Not recorded for this incident

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

Regulatory clocksMaine✓ ME AG ≤30d · 18dHIPAA✓ HHS notifiedMassachusetts✓ MA credit monitoring dueFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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