DisclosureLens
UnknownMedium

Millstone Medical Outsourcing, LLC

bd_16b02a8a37c70dbd · schema v1 · pii pii-v2

Severity

Medium

Discovered

—

Filed

Sep 18, 2026

To disclose

—

Affected · nationwide

3,5031 in this filing

Linked

3 filings

Confidence

95%
Full breach record for Millstone Medical Outsourcing, LLC →

Millstone Medical Outsourcing LLC reported a data breach to the Indiana Attorney General. The breach occurred on 2025-12-15 and was reported on 2026-09-18. 1 Indiana residents were affected. 3,503 individuals affected in total.

Incident timeline

Dec 15, 2025

Begins

Sep 18, 2026

Filed

This filing is one of 3 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Filing propagation · 3 filings · 3 states

View merged incident ↗
Indiana State AGSep 18 · first · this page
Vermont State AG+3d
Massachusetts State AG+13d

Pattern: first filing Sep 18 (IN), last Oct 1 (MA) — a 13-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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.