Traditional Breach
TheUnderground - Reborn
medibank.7z
Data leak attributed to TheUnderground - Reborn, first discovered on 2026-02-16. Approximately 13,748,965 records were reported exposed.
Threat group
TheUnderground - Reborn
Records exposed
13,748,965
Discovered
2026-02-16
Country
Unknown
Indexed
2026-08-06
Source ID
85e2f698694b
What is inside this leak sample
Indexed records
13,748,965
With email
•••
ID documents
•••
File types
•••
Corporate vs personal email
23.27% corporate · 76.73% personal
Top corporate email domains
% of corporate emails
bigpond.com
27.67%
optusnet.com.au
5.61%
6 more hidden ·
Enterprise
File types present
csv
•••
xlsx
•••
Analysed 2026-10-11
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