Traditional Breach
TheUnderground - Reborn
my.mail.ru_2019_1.6kk.csv
Data leak attributed to TheUnderground - Reborn, first discovered on 2025-04-28. Approximately 1,636,886 records were reported exposed.
Threat group
TheUnderground - Reborn
Records exposed
1,636,886
Discovered
2025-04-28
Country
RU
Indexed
2026-10-18
Source ID
179c86e45a8c
What is inside this leak sample
Indexed records
1,636,886
With email
•••
ID documents
•••
File types
•••
Corporate vs personal email
0.15% corporate · 99.85% personal
Top corporate email domains
% of corporate emails
gmail.ru
28.88%
email.ru
7.95%
6 more hidden ·
Enterprise
File types present
csv
•••
Analysed 2026-10-25
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