INCIDENT: Cyberattack at Shields Healthcare Group Compromises Personal Medical Data of Millions of Patients

Shields Health Care Group reported a healthcare cyberattack to HHS impacting 2 million individuals. The Massachusetts-based healthcare group provides MRI, PET/CT, and ambulatory surgical services to patients across New England at more than 30 locations.

According to a notice on Shields’ website, the organization discovered suspicious activity on its network on March 28, 2022. Shields immediately launched an investigation and took steps to contain the incident. The investigation revealed that an unknown actor gained access to certain Shields systems from March 7 to March 21. The unknown actor also acquired certain data from the systems.

Incident Date

March 7, 2022


United States

Estimated Cost


Type of Malware:

No Malware identified

Threat Source:

No threat source identified


  • Notice of Data Security Incident
  • 2 million affected by Shields Health Care Group cyberattack
  • 2 Million Individuals Impacted By Shields Health Care Group Cyberattack



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