This record tracks a ransomware attack claimed by the
spacebears group against
Comcast. 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.
-58days
t1 · Published
t2 · Disclosed
Business Category
Communication / Marketing
Published
December 07, 2025
Disclosed / Notified
Oct 10, 2025
Attack Summary
As a global media and tech company, Comcast reaches hundreds of millions of customers, viewers, and guests with world-class connectivity and platforms and beloved content and experiences.The leak was made possible by Quasar Inc., a company that prepares technical documentation for Comсast and its Genesis project. The files contain design documentation for numerous cities, as well as detailed utility plans. https://corporate.comcast.com/
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 corporate.comcast.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
1,346
found in Traditional breaches
38
found in Ransomware leaks
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
contacts_20.csv
Database World ROC · breach
••• emails
udemy.com.zip
Database World ROC · breach
••• emails
extracted_emails.txt
DL| Database catalog · breach
••• emails
Marcus & Millichap, Inc.
shinyhunters · breach
••• emails
Access Intelligence
play · ransomware
••• emails
+ 5 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.