This record tracks a ransomware attack claimed by the
blackbyte group against
CPTM. 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.
1265days open
t1 · Published
t2 · Pending
Business Category
Transportation / Travel / Logistics
Published
December 29, 2022
Disclosed / Notified
Not disclosed yet
Attack Summary
The São Paulo Metropolitan Train Company is a commuter rail system owned by the Secretariat of Urban Transportation of the State of São Paulo. It was created in 1992 with the merger of several railways in Greater São Paulo, Brazil.
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 cptm.sp.gov.br
— indexed by HaveIBeenRansom.
393
found in Infostealer logs
711+
found in Traditional breaches
2,289+
found in Ransomware leaks
ValeCard
medusa · ransomware
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
contacts_82.csv
Database World ROC · breach
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
contacts_80.csv
Database World ROC · breach
••• emails
TAPAir_BF_.7z.001
Database World ROC · breach
••• emails
Dropbox_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
+ 17 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.