DisclosureLens
MICHIGANHackingHealthcareHealthcareBusiness Associate (HIPAA)Customer Data InvolvedPHIIdentity (basic)Health (basic)Medium

Mid Michigan Medical Billing Services

bd_5e5fe90142eea560 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Jan 5, 2026

To disclose

—

Affected

28,185

Linked

2 filings

Confidence

69%
Full breach record for Mid Michigan Medical Billing Services →

Mid Michigan Medical Billing Service, Inc. reported to HHS on 2026-01-05 a Hacking/IT Incident affecting 28185 individuals. Breached information located on Network Server. Business associate present.

Leak gap clock✗ Leak >180d
⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.
⚠ No discovery dateThe OCR public portal omits the discovery date, so the 60-day notification clock cannot be evaluated from this source — only that the filing was submitted.

Incident timeline — partial

? — ?

Breach window unknown

Jan 5, 2026

Filed

—

Corroborated · see linked filings

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

This filing is one of 2 about the same incident.View merged incident
A leak claim by qilin about this victim predates this filing by 283 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

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.