Traditional Breach
TheUnderground - Reborn
Altenen_BF.7z
Data leak attributed to TheUnderground - Reborn, first discovered on 2025-06-30. Approximately 3,950,667 records were reported exposed.
Threat group
TheUnderground - Reborn
Records exposed
3,950,667
Discovered
2025-06-30
Country
Unknown
Indexed
2026-09-10
Source ID
4759438f8da3
What is inside this leak sample
Indexed records
3,950,667
With email
•••
ID documents
•••
File types
•••
Corporate vs personal email
30.4% corporate · 69.6% personal
Top corporate email domains
% of corporate emails
example.com
4.64%
firemailbox.club
2.97%
6 more hidden ·
Enterprise
Analysed 2026-10-20
More leaks attributed to TheUnderground - Reborn
Cyberspider-7.8RosepineEdtion.zip
642 records
MRT - Certified Red Teamer 2026.9.zip
65 records
Hands-on Identity & Cloud Attacks 2026.7z
102,786 records
Red Team Hacking.zip
1 records
EC-Council - Certified SOC Analyst (CSA) v2.zip
30 records
EC-Council - Network Defense Essentials (NDE) v2.zip
23 records
Worried your information is in this or another leak?
Run a free, anonymous search
across millions of ransomware and infostealer records.