CALIFORNIA PHYSICIANS' SERVICE — May 2023 breach

Clustered 3 filings across 2 jurisdictions · filing window Nov 17, 2023 → Nov 22, 2023. View entity profile → Other incidents for this victim →

⚠ 1 cross-filing discrepancy →Merge100%

Determination

Confirmed

Members

3 filings

States

Affected · reported

636,849

First → last filing

Nov 17, 2023 → Nov 22, 2023

Merge confidence

100%

incident inc_c8f55b474dba4f7a · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 3 regulatory filings. The filings describe hacking. Intrusion May 28, 2023–May 31, 2023, discovered Aug 23, 2023 — the first regulatory filing landed 86 days later. 636,849 individuals reported across the linked filings. Data reported: Government ID, PHI, Health (basic), and 1 more. Notifications rolled out on a 5-day schedule across 3 filings beginning Nov 17, 2023. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Notification delay

86days

Discovered → first regulatory filing

Discovery variance

0days

Range of discovered_at dates across filings

Filing span

5days

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 clocksHIPAA✓ HHS notifiedFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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