This record tracks a ransomware attack claimed by the
apt73 group against
certifiedinfosec.com. It collects the publicly disclosed attack details — sector, location and
timeline — as published on the operator's leak site and indexed by Breach House.
Window Zero
EXPOSURE GAP
Window Zero is the time the breach stayed in the open before
anyone said so — the gap between when the attack was first discovered
on the operator's leak site (t1) and when it was publicly disclosed (t2).
The wider this window, the longer victims, staff and customers were exposed with no warning.
-74days
t1 · Published
t2 · Disclosed
Business Category
Education
Disclosed / Notified
Feb 13, 2026
Attack Summary
Certified Information Security is a registered trade name for Certified Tech Trainers (CTT) (D-U-...
Leak Screenshots
SAMPLE
Proof-of-breach screenshots the operator posted from the stolen data. Previews are
redacted and locked — the originals are available on HaveIBeenRansom.
Dark Web Exposure
Findings for certifiedinfosec.com
— indexed by HaveIBeenRansom.
21
found in Infostealer logs
37+
found in Traditional breaches
0+
found in Ransomware leaks
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
USVoterData_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Dump_public_zomato.com_2017.05.17.rar
Database World ROC · breach
••• emails
@StormBaseAdapter - ГосУслуги.part01.rar
⚡️𝙎𝙏𝙊𝙍𝙈 Dаtа Ваsе · breach
••• emails
Zomato_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
+ 13 more leak sources locked
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Legal Disclaimer:
This ransomware victim record reflects information published on the operator's leak site.
Breach.house does not acquire, download, host, access or redistribute unlawfully obtained data. It indexes only publicly visible information posted by ransomware, breach and infostealer operators and open web sources, without accessing the underlying stolen content. The service supports public awareness, legitimate research and cyber-resilience.