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46 healthcare data breaches have been reported in Massachusetts, affecting 7,342,804 patients. Review breach details, understand your rights, and learn how to protect your medical information.
If your provider is listed here, you should have received a breach notification letter under HIPAA. Monitor your Explanation of Benefits statements for unauthorized claims, place a fraud alert on your credit, and consider requesting a copy of your medical records to verify accuracy. You can file a complaint with HHS if you did not receive required notification.
| Organization | Date | Type | Affected | Severity |
|---|---|---|---|---|
| Harvard Pilgrim Health Care | 2023-05-24 | Hacking/IT Incident | 2,624,191 | critical |
| Shields Health Care Group, Inc. | 2022-05-27 | Hacking/IT Incident | 2,000,000 | critical |
| ZOLL Services LLC | 2023-03-10 | Hacking/IT Incident | 997,097 | critical |
| Transformative Healthcare, on behalf of Fallon Ambulance Services | 2023-12-31 | Hacking/IT Incident | 911,757 | critical |
| Onsite Mammography | 2025-04-21 | Hacking/IT Incident | 357,265 | critical |
Hacking/IT Incident · 501 affected
Hacking/IT Incident · 1,638 affected
Unauthorized Access/Disclosure · 500 affected
Hacking/IT Incident · 501 affected
Hacking/IT Incident · 19,231 affected
Unauthorized Access/Disclosure · 4,289 affected
Unauthorized Access/Disclosure · 1,421 affected
Hacking/IT Incident · 5,427 affected
Hacking/IT Incident · 500 affected
Hacking/IT Incident · 7,864 affected
Under HIPAA, healthcare organizations in Massachusetts must notify you within 60 days if your protected health information (PHI) has been compromised in a data breach affecting 500 or more individuals.
Massachusetts has state-level breach notification laws that may provide additional protections beyond federal HIPAA requirements. You have the right to:
Massachusetts Medical Records Guide
Know your rights to access and correct your records
Request Your Medical Records
Order copies to verify accuracy after a breach
Search our database to see if your healthcare provider in Massachusetts was involved in a breach.
As of our latest data, 46 healthcare data breaches have been reported in Massachusetts, affecting a total of 7,342,804 patients. The most common type is Hacking/IT Incident.
If your healthcare data was compromised in Massachusetts, you should: (1) review the breach notification letter for details, (2) request a copy of your medical records to check for unauthorized changes, (3) place a fraud alert on your credit reports, (4) file a complaint with the HHS Office for Civil Rights or the Massachusetts Attorney General's office, and (5) consider consulting an attorney about potential compensation.
Yes, Massachusetts has state-level breach notification laws that may provide additional protections beyond federal HIPAA requirements. These laws may cover different types of personal information, have different notification timelines, and provide additional enforcement mechanisms through the Massachusetts Attorney General's office.
Disclaimer: This page provides educational information about healthcare data breaches in Massachusetts. It is not legal advice. Data is sourced from the HHS OCR Breach Portal and may not reflect the most current information. Consult a qualified attorney for specific legal questions about a data breach affecting you.