Marquis blames ransomware breach on SonicWall cloud backup hack
ID: ec5c7cd6-9ba9-54a2-9374-de1b78f32c33
STIX ID: report--ec5c7cd6-9ba9-54a2-9374-de1b78f32c33
Feed Name: Bleeping Computer
Threat Score
Marquis Software Solutions attributes an August 2025 ransomware incident that affected dozens of U.S. banks and credit unions to attackers who leveraged firewall configuration data stolen from SonicWall's MySonicWall cloud backup breach; SonicWall later confirmed the breach affected all cloud-backup customers and Mandiant linked the incident to state-sponsored actors.
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