HHS OCRState AGConfirmed2 filings · 1 stateLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedmoderate sensitivity
Merged incident · 2 filings
Health Plan of San Mateo — January 2023 breach
Clustered 2 filings across 1 jurisdiction · filed Mar 17, 2023. View entity profile → Other incidents for this victim →
⚠ 1 cross-filing discrepancy →Merge100%
incident inc_b9c1d31dfe9e4b74 · merged by deterministic · confidence 100%
Confirmed breach. Merged as one breach: 2 regulatory filings. The filings describe social engineering. Intrusion Jan 17, 2023, discovered Jan 17, 2023 — the first regulatory filing landed 59 days later. 11,894 individuals reported across the linked filings. Data reported: Identity (basic), Health (basic), and PHI. Each member filing remains the legal record for its jurisdiction.
Litigation Timing
Notification delay
59days
Discovered → first regulatory filing
Filing span
0days
Time between earliest and latest filing
Not recorded for this incident
Discovery variance · Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster; needs two dated filings.
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