This record tracks a ransomware attack claimed by the
cicada3301 group against
Substitute Teacher Service. 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.
-69days
t1 · Published
t2 · Disclosed
Business Category
Education
Published
February 08, 2025
Disclosed / Notified
Dec 01, 2024
Attack Summary
Status: 6d 1h 50m 24s - Size Data: 210 GB
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 thesubservice.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
2,026+
found in Traditional breaches
78+
found in Ransomware leaks
pureincubation-com.7z.001
Database World ROC · breach
••• emails
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
contacts_110.csv
Database World ROC · breach
••• emails
contacts_114.csv
Database World ROC · breach
••• emails
Televerde
play · ransomware
••• emails
contacts_103.csv
Database World ROC · breach
••• emails
contacts_108.csv
Database World ROC · breach
••• emails
contacts_117.csv
Database World ROC · breach
••• emails
+ 17 more leak sources locked
Leak volumes are locked
Sign in to reveal how many records each source exposed and the remaining 20 sources.
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.