This record tracks a ransomware attack claimed by the
akira group against
Microcosm. 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.
-61days
t1 · Published
t2 · Disclosed
Published
August 11, 2025
Disclosed / Notified
Jun 11, 2025
Attack Summary
In summer 2025 our team managed to crack IT defenses of a large number of companies. Data of some of them hasn't been leaked, so we will just list company names.
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 microcosm.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
110+
found in Traditional breaches
2+
found in Ransomware leaks
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
usa.gov - USA Business & Investor Database.rar
Database World ROC · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
Marcus & Millichap, Inc.
shinyhunters · breach
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
TrueFire_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
+ 12 more leak sources locked
Leak volumes are 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.