DisclosureLens
UnknownHealthcareHealthcareCustomer Data InvolvedPIIIdentity (basic)MediumContained

Prospect Medical Holdings, Inc.

bd_610b4d3b2e537df7 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Feb 29, 2024

To disclose

—

Affected

1,882state residents only

Linked

13 filings

Confidence

66%
Full breach record for Prospect Medical Holdings, Inc. →

Prospect Medical Holdings filed a supplemental notification with the New Hampshire Attorney General regarding a data security incident occurring in August 2023. The incident affected 1,882 New Hampshire residents, including patients, health plan members, and employees. The organization offered credit monitoring and established an incident response line.

Leak gap clock✗ Leak >180d
⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Incident timeline

Aug 1, 2023

Begins

Feb 29, 2024

Filed

This filing is one of 13 about the same incident.View merged incident
A leak claim by rhysida about this victim predates this filing by 189 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Show 6 more filings ↓up to 153d gap

Showing first 10 of 12 linked disclosures.

Filing propagation · 11 filings · 7 states

View merged incident ↗
Indiana State AGSep 29 · first
HHS OCRSep 29 · first
New Hampshire State AGSep 29 · first
Maine State AGSep 29 · first
Vermont State AGSep 29 · first
California State AGSep 29 · first
Massachusetts State AGSep 29 · first
Montana State AGSep 29 · first
California State AG+75d
New Hampshire State AG+153d · this page
Massachusetts State AG+154d

Pattern: first filing Sep 29 (IN), last Mar 1 (MA) — a 154-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 12 — the full spread may be wider.

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.