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Millstone Medical Outsourcing Data Breach Exposes Sensitive Customer Data

Millstone Medical Outsourcing Data Breach Exposes Sensitive Customer Data

First seen 4 Oct 2026, 04:08 UTC • •
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ThreatCluster AI
ThreatCluster •October 4, 2026 at 06:06 UTC
  • •Unauthorized access to Millstone Medical Outsourcing systems occurred from December 15-19, 2025.
  • •Sensitive personal, financial, and health information may have been compromised.
  • •Edelson Lechtzin LLP is offering free case evaluations for affected individuals.

Millstone Medical Outsourcing reported a data breach involving unauthorized access to its computer systems from December 15 to December 19, 2025. The breach was detected on December 16, 2025, and a comprehensive data review confirmed on July 15, 2026, that personal, financial, and health information was compromised. Affected individuals include those who received breach notices from Millstone or believe their data may have been exposed. The company filed a report with the Vermont Attorney General's Office on September 21, 2026, but the full scope of the breach, including the number of affected individuals and the attacker's identity, remains unconfirmed. Edelson Lechtzin LLP is investigating potential class action claims related to this breach.

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Timeline

2025-12-15
Unauthorized access begins
An unauthorized party accessed Millstone Medical Outsourcing's systems, marking the start of the breach.
Morningstar
2025-12-16
Breach detected
Millstone Medical Outsourcing detected suspicious activity on its systems.
Morningstar
2026-07-15
Data review completed
A comprehensive review confirmed that personal information was involved in the breach.
Morningstar
2026-09-21
Report filed with Vermont AG
Millstone Medical Outsourcing reported the breach to the Vermont Attorney General's Office.
Morningstar

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Extracted Entities (4)

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Common questions

Who is affected by the breach?
Individuals whose personal, financial, or health information was maintained by Millstone Medical Outsourcing and who received a breach notice.
What information was compromised?
The compromised data may include Social Security numbers, government identification numbers, financial account codes, and health records.
What should affected individuals do?
Affected individuals can request a free case evaluation from Edelson Lechtzin LLP to explore potential claims.