Ransomware victim disclosure
← All victimsTuftsMedicine
Claimed by Cloak · listed 9 months ago
Status timeline
- Listed
Sep 7, 2025
- Data leaked
At a glance
- Group
- Cloak
- Status
- Data leaked
- Country
- United States
- Sector
- Healthcare
- Listed on leak site
- Sep 7, 2025
About the victim
AI dossier — public-source company profileTufts Medicine is a not-for-profit integrated health system based in Boston, Massachusetts, serving patients across eastern Massachusetts. The system includes Tufts Medical Center, Lowell General Hospital, MelroseWakefield Hospital, and affiliated community care networks. It operates as one of the region's major academic medical systems with thousands of physicians and staff.
- Industry
- Healthcare & Hospital Systems
- Address
- 800 Washington Street, Boston, MA 02111, United States
- Employees
- 10000+
- Founded
- 2022
Attack summary
Severity: critical — Tufts Medicine is a large academic healthcare system; data_published status strongly implies confirmed exfiltration of protected health information (PHI) and PII at scale, which constitutes regulated medical data under HIPAA — meeting the critical threshold.The Cloak ransomware group claims to have attacked Tufts Medicine and has listed the disclosure status as data_published, indicating data was exfiltrated and subsequently published. The specific categories and volume of data published are not described in the available leak post excerpt.
Data the group says was taken
AI dossier — extracted from the leak post- Patient records
- Personally identifiable information (PII)
- Protected health information (PHI)
- Employee data
- Financial records
- Internal business documents
Original description
AI-summarised, not from the leak postN/A
Sources
- Victim sitetuftsmedicine.org
Source
Indexed 9 months agoThis page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.
