DisclosureLens
HackingHealthcareHealthcareCustomer Data InvolvedPIIIdentity (basic)LowContained

United Medical Systems (DE), Inc.

bd_b885f87de6d97c3f · schema v1 · pii pii-v1

Severity

Low

Discovered

Apr 20, 2026

Filed

May 20, 2026

To disclose

4 weeks

Affected · nationwide

4854 in this filing

Linked

4 filings

Confidence

65%
Full breach record for United Medical Systems (DE), Inc. →

United Medical Systems (DE), Inc. reported an external system breach (hacking) occurring on December 19, 2025, discovered on April 20, 2026. The incident affected 485 individuals, including 4 Maine residents. The organization notified affected parties in writing on May 20, 2026, and provided 12 months of credit and identity monitoring services through Kroll.

Maine clockDiscovered Apr 20, 2026 → Filed with AG May 20, 202630d ✓ ME AG ≤30d4 weeks discovery → filing
⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 122 days
discovery → filing · 4 weeks / 30 days

Dec 19, 2025

Begins

Apr 20, 2026

Discovered

May 20, 2026

Filed

vs. sector median

7 wks faster

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Filing propagation · 4 filings · 4 states

View merged incident ↗
Indiana State AGMay 20 · first
Massachusetts State AGMay 20 · first
New Hampshire State AGMay 20 · first
Maine State AGMay 20 · first · this page

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.