Ransomware Leak
play
Highmark Companies
Data leak attributed to play, first discovered on 2025-11-20. Approximately 71,780 records were reported exposed.
Threat group
play
Records exposed
71,780
Discovered
2025-11-20
Country
US
Indexed
2025-11-27
Website
www.highmarkcos.com
Source ID
24025
About this leak
United States
What is inside this leak sample
Indexed records
71,780
With email
•••
ID documents
•••
File types
•••
Corporate vs personal email
65.28% corporate · 34.72% personal
Top corporate email domains
% of corporate emails
highmarkcos.com
45.16%
highmarkcos.com
7.88%
6 more hidden ·
Enterprise
Countries · identity documents
US · 100.0%
Analysed 2026-09-01
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