QuasarBreach — Campaign Analysis & Threat Activity

Threat entity extracted from intelligence sources

Frequency
1
occurrences
First Seen
December 8, 2025
Last Seen
December 8, 2025

QuasarBreach is a threat campaign name invoked by the Space Bears ransomware group in a claim that Comcast data was stolen.

Overview

QuasarBreach is a threat campaign name invoked by the Space Bears ransomware group in a claim that Comcast data was stolen. The campaign is described as enabling data exfiltration used for ransomware extortion against a high-profile target, illustrating branded data-theft campaigns. Its significance lies in signaling a focus on large targets and the use of campaign branding to publicize data breaches.

Related Threat Clusters

Recent Intelligence Reports

  • Space Bears Ransomware Claims Comcast Data Theft Through QuasarBreach — Feeds.Feedburner · December 8, 2025

CVSS v3.1 Breakdown