Ransomware Leak
medusa
BAMSI
Data leak attributed to medusa, first discovered on 2023-05-15. Approximately 4,406,929 records were reported exposed.
Threat group
medusa
Records exposed
4,406,929
Discovered
2023-05-15
Country
Unknown
Indexed
2025-07-07
Website
bamsi.org
Source ID
6444
About this leak
BAMSI is a private, non-profit social services organization that provides behavioral health and public health services to adults and children with developmental disabilities and mental illnesses. BAMSI was founded in 1975 and is headquartered in Brockton, Massachusetts, with 50,000 patients served annually.
What is inside this leak sample
Indexed records
4,406,929
With email
•••
ID documents
•••
File types
•••
Corporate vs personal email
56.35% corporate · 43.65% personal
Top corporate email domains
% of corporate emails
bamsi.org
93.62%
bamsi.org>
0.38%
6 more hidden ·
Enterprise
Analysed 2026-09-03
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