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Space Bears Ransomware Claims Comcast Data Theft via QuasarBreach

First seen 8 Dec 2025, 14:53 UTC • Rss.App

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ThreatCluster

The Space Bears ransomware group has claimed responsibility for a data breach at Comcast, asserting that they obtained sensitive files through an attack on Quasar Inc. The group has threatened to publish the stolen data, alongside separate leaks from Quasar itself.

How this analysis works

Attack Flow

9 entities, 14 inferred relationships (STIX 2.1).

Technique (4)

Data Breach
DDoS
Malware
Ransomware

Campaign (1)

QuasarBreach

Organization (2)

Comcast
Quasar Inc

Threat Actor (2)

Space Bears
Space Bears Ransomware Group

Relationships

Space Bears uses Data Breach
Space Bears uses DDoS
Space Bears uses Malware
Space Bears uses Ransomware
Space Bears Ransomware Group uses Data Breach
Space Bears Ransomware Group uses DDoS
Space Bears Ransomware Group uses Malware
Space Bears Ransomware Group uses Ransomware
QuasarBreach attributed to Space Bears
QuasarBreach attributed to Space Bears Ransomware Group
Space Bears targets Comcast
Space Bears targets Quasar Inc
Space Bears Ransomware Group targets Comcast
Space Bears Ransomware Group targets Quasar Inc

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Space Bears Ransomware Claims Comcast Data Theft via QuasarBreach

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Extracted Entities

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